Known Dual Williams (probable) primes inclusive all small n's for b < 1000
Expression: b^n-(b+1)
b = 2
n = 3 1 digits Prime
n = 4 2 digits Prime
n = 5 2 digits Prime
n = 6 2 digits Prime
n = 9 3 digits Prime
n = 10 4 digits Prime
n = 12 4 digits Prime
n = 14 5 digits Prime
n = 20 7 digits Prime
n = 22 7 digits Prime
n = 24 8 digits Prime
n = 29 9 digits Prime
n = 94 29 digits Prime
n = 116 35 digits Prime
n = 122 37 digits Prime
n = 150 46 digits Prime
n = 174 53 digits Prime
n = 213 65 digits Prime
n = 221 67 digits Prime
n = 233 71 digits Prime
n = 266 81 digits Prime
n = 336 102 digits Prime
n = 452 137 digits Prime
n = 545 165 digits Prime
n = 689 208 digits Prime
n = 694 209 digits Prime
n = 850 256 digits Prime
n = 1736 523 digits Prime
n = 2321 699 digits Prime
n = 3237 975 digits Prime
n = 3954 1191 digits Prime
n = 5630 1695 digits Prime
n = 6756 2034 digits Prime
n = 8770 2641 digits Prime
n = 10572 3183 digits Prime
n = 14114 4249 digits Prime
n = 14400 4335 digits Prime
n = 16460 4955 digits Prime
n = 16680 5022 digits Prime
n = 20757 6249 digits Prime
n = 26350 7933 digits Prime
n = 30041 9044 digits PRP
n = 34452 10372 digits Aug 2001 Prime Paul Underwood
n = 36552 11004 digits Aug 2001 PRP Paul Underwood
n = 42689 12851 digits Aug 2001 PRP Paul Underwood
n = 44629 13435 digits Aug 2001 PRP Paul Underwood
n = 50474 15195 digits Aug 2001 PRP Paul Underwood
n = 66422 19996 digits Aug 2001 Prime Paul Underwood
n = 69337 20873 digits Aug 2001 PRP Paul Underwood
n = 116926 35199 digits Jul 2002 PRP M. Frind & P. Underwood
n = 119324 35921 digits Jul 2002 PRP M. Frind & P. Underwood
n = 123297 37117 digits Feb 2008 PRP Gary Barnes
n = 189110 56928 digits Nov 2002 PRP M. Frind & P. Underwood
n = 241004 72550 digits Jul 2002 PRP M. Frind & P. Underwood
n = 247165 74405 digits Jul 2002 PRP M. Frind & P. Underwood
n = 284133 85533 digits Jul 2002 PRP M. Frind & P. Underwood
n = 354946 106850 digits Aug 2002 PRP M. Frind & P. Underwood
n = 394034 118617 digits Sep 2002 PRP M. Frind & P. Underwood
n = 702194 211382 digits Mar 2012 PRP Paul Bourdelais
n = 750740 225996 digits Mar 2012 PRP Paul Bourdelais
n = 840797 253106 digits Jun 2019 PRP Paul Bourdelais
n = 1126380 339075 digits Jun 2019 PRP Paul Bourdelais
n = 1215889 366020 digits Jun 2019 PRP Paul Bourdelais
n = 1347744 405712 digits Jul 2019 PRP Paul Bourdelais
n = 1762004 530417 digits Apr 2020 PRP Paul Bourdelais
n = 2086750 628175 digits May 2020 PRP Paul Bourdelais
b = 3
n = 2 2 digits Jun 2026 Prime
n = 3 2 digits Prime
n = 5 3 digits Prime
n = 21 11 digits Prime
n = 31 15 digits Prime
n = 37 18 digits Prime
n = 41 20 digits Prime
n = 53 26 digits Prime
n = 73 35 digits Prime
n = 101 49 digits Prime
n = 175 84 digits Prime
n = 203 97 digits Prime
n = 225 108 digits Prime
n = 455 218 digits Prime
n = 557 266 digits Prime
n = 651 311 digits Prime
n = 1333 637 digits Prime
n = 4823 2302 digits Prime
n = 20367 9718 digits PRP
n = 32555 15533 digits Jan 2005 PRP Henri Lifchitz
n = 52057 24838 digits Jan 2005 PRP Henri Lifchitz
n = 79371 37870 digits Jul 2011 PRP Ray Chandler
n = 267267 127519 digits Oct 2014 PRP Henri Lifchitz
n = 312155 148936 digits Feb 2023 PRP Anonymous
b = 4
n = 2 2 digits Jun 2026 Prime
n = 3 2 digits Jun 2026 Prime
n = 4 3 digits Prime
n = 5 4 digits Prime
n = 6 4 digits Prime
n = 9 6 digits Prime
n = 10 7 digits Prime
n = 13 8 digits Prime
n = 16 10 digits Prime
n = 18 11 digits Prime
n = 28 17 digits Prime
n = 33 20 digits Prime
n = 59 36 digits Prime
n = 65 40 digits Prime
n = 75 46 digits Prime
n = 83 50 digits Prime
n = 103 63 digits Prime
n = 113 69 digits Prime
n = 275 166 digits Prime
n = 353 213 digits Prime
n = 405 244 digits Prime
n = 568 342 digits Prime
n = 614 370 digits Prime
n = 909 548 digits Prime
n = 1184 713 digits Prime
n = 1200 723 digits Prime
n = 1564 942 digits Prime
n = 2266 1365 digits Prime
n = 2556 1539 digits Prime
n = 4246 2557 digits Prime
n = 8014 4825 digits Prime
n = 8193 4933 digits Prime
n = 8696 5236 digits Prime
n = 9291 5594 digits Prime
n = 10993 6619 digits PRP
n = 12146 7313 digits PRP
n = 13809 8314 digits PRP
n = 15459 9308 digits PRP
n = 16381 9863 digits Prime
n = 24106 14514 digits Nov 2001 PRP Paul Underwood
n = 60220 36257 digits Aug 2005 PRP Henri Lifchitz
n = 91816 55279 digits Aug 2005 PRP Henri Lifchitz
n = 158070 95168 digits Feb 2006 PRP Henri Lifchitz
n = 182491 109871 digits Apr 2006 PRP Henri Lifchitz
n = 207016 124637 digits Jul 2006 PRP Henri Lifchitz
n = 266675 160555 digits Jul 2022 PRP Stefano Morozzi
n = 297561 179150 digits Jul 2022 PRP Stefano Morozzi
n = 799560 481384 digits Dec 2022 PRP Stefano Morozzi
b = 5
n = 2 2 digits Jun 2026 Prime
n = 4 3 digits Jun 2026 Prime
n = 5 4 digits Prime
n = 6 5 digits Prime
n = 10 7 digits Prime
n = 53 38 digits Prime
n = 76 54 digits Prime
n = 82 58 digits Prime
n = 88 62 digits Prime
n = 242 170 digits Prime
n = 247 173 digits Prime
n = 473 331 digits Prime
n = 586 410 digits Prime
n = 966 676 digits Prime
n = 1015 710 digits Prime
n = 1297 907 digits Prime
n = 1825 1276 digits Prime
n = 2413 1687 digits Prime
n = 2599 1817 digits Prime
n = 2833 1981 digits Prime
n = 5850 4089 digits PRP
n = 5965 4170 digits PRP
n = 6052 4231 digits PRP
n = 27199 19012 digits Jan 2006 PRP Maksym Voznyy
n = 49704 34742 digits May 2012 PRP Lelio R Paula
n = 79000 55219 digits Oct 2012 PRP Lelio R Paula
n = 147338 102985 digits Nov 2014 PRP Lelio R Paula
b = 6
n = 2 2 digits Jun 2026 Prime
n = 4 4 digits Jun 2026 Prime
n = 6 5 digits Prime
n = 8 7 digits Prime
n = 9 8 digits Prime
n = 10 8 digits Prime
n = 15 12 digits Prime
n = 20 16 digits Prime
n = 46 36 digits Prime
n = 49 39 digits Prime
n = 61 48 digits Prime
n = 98 77 digits Prime
n = 110 86 digits Prime
n = 144 113 digits Prime
n = 266 207 digits Prime
n = 344 268 digits Prime
n = 978 762 digits Prime
n = 1692 1317 digits Prime
n = 1880 1463 digits Prime
n = 1924 1498 digits Prime
n = 3142 2445 digits Prime
n = 3220 2506 digits Prime
n = 4209 3276 digits PRP
n = 5708 4442 digits PRP
n = 7064 5497 digits PRP
n = 13465 10478 digits Sep 2006 PRP Lelio R Paula
n = 13858 10784 digits Sep 2006 PRP Lelio R Paula
n = 19474 15154 digits Sep 2006 PRP Lelio R Paula
n = 22666 17638 digits Nov 2006 PRP Lelio R Paula
n = 26807 20860 digits Apr 2012 PRP Lelio R Paula
n = 73727 57371 digits Oct 2012 PRP Lelio R Paula
n = 109626 85306 digits Nov 2014 PRP Lelio R Paula
n = 141361 110001 digits Nov 2014 PRP Lelio R Paula
b = 7
n = 2 2 digits Jun 2026 Prime
n = 4 4 digits Jun 2026 Prime
n = 8 7 digits Prime
n = 10 9 digits Prime
n = 50 43 digits Prime
n = 106 90 digits Prime
n = 182 154 digits Prime
n = 293 248 digits Prime
n = 964 815 digits Prime
n = 1108 937 digits Prime
n = 1654 1398 digits Prime
n = 1756 1484 digits Prime
n = 4601 3889 digits Prime
n = 8870 7497 digits PRP
n = 15100 12761 digits Aug 2006 PRP Lelio R Paula
n = 17446 14744 digits Aug 2006 PRP Lelio R Paula
n = 22742 19220 digits Jan 2007 PRP Lelio R Paula
n = 34570 29216 digits May 2012 PRP Lelio R Paula
n = 50150 42382 digits May 2012 PRP Lelio R Paula
n = 95276 80518 digits Jan 2014 PRP Robert Price
b = 8
n = 3 3 digits Jun 2026 Prime
n = 7 7 digits Jun 2026 Prime
n = 11 10 digits Prime
n = 47 43 digits Prime
n = 81 74 digits Prime
n = 95 86 digits Prime
n = 107 97 digits Prime
n = 179 162 digits Prime
n = 233 211 digits Prime
n = 243 220 digits Prime
n = 947 856 digits Prime
n = 2817 2545 digits Prime
n = 2859 2582 digits Prime
n = 3233 2920 digits Prime
n = 7563 6831 digits PRP
n = 11307 10212 digits Nov 2001 PRP Paul Underwood
n = 218615 197430 digits Jan 2017 PRP Robert Price
n = 225587 203726 digits Jan 2017 PRP Robert Price
b = 9
n = 2 2 digits Jun 2026 Prime
n = 3 3 digits Jun 2026 Prime
n = 4 4 digits Jun 2026 Prime
n = 9 9 digits Prime
n = 11 11 digits Prime
n = 18 18 digits Prime
n = 19 19 digits Prime
n = 27 26 digits Prime
n = 28 27 digits Prime
n = 46 44 digits Prime
n = 50 48 digits Prime
n = 53 51 digits Prime
n = 80 77 digits Prime
n = 155 148 digits Prime
n = 203 194 digits Prime
n = 280 268 digits Prime
n = 451 431 digits Prime
n = 4963 4736 digits PRP
n = 6167 5885 digits PRP
n = 9687 9244 digits PRP
n = 10083 9622 digits PRP
n = 31450 30011 digits Apr 2012 PRP Lelio R Paula
b = 10
n = 2 3 digits Jun 2026 Prime
n = 5 6 digits Jun 2026 Prime
n = 8 9 digits Jun 2026 Prime
n = 12 13 digits Prime
n = 15 16 digits Prime
n = 18 19 digits Prime
n = 20 21 digits Prime
n = 30 31 digits Prime
n = 80 81 digits Prime
n = 143 144 digits Prime
n = 152 153 digits Prime
n = 164 165 digits Prime
n = 176 177 digits Prime
n = 239 240 digits Prime
n = 291 292 digits Prime
n = 324 325 digits Prime
n = 504 505 digits Prime
n = 594 595 digits Prime
n = 983 984 digits Prime
n = 2894 2895 digits Prime
n = 22226 22227 digits Dec 2010 PRP Ray Chandler
n = 35371 35372 digits Dec 2010 PRP Robert Price
n = 58437 58438 digits May 2011 PRP Robert Price
n = 67863 67864 digits May 2011 PRP Robert Price
n = 180979 180980 digits Dec 2014 PRP Serge Batalov
n = 259945 259946 digits Apr 2023 PRP Mischa Rodermond
n = 424821 424822 digits Apr 2023 PRP Mischa Rodermond
n = 459480 459481 digits Apr 2023 PRP Mischa Rodermond
b = 11
n = 2 3 digits Jun 2026 Prime
n = 3 4 digits Jun 2026 Prime
n = 4 5 digits Jun 2026 Prime
n = 5 6 digits Jun 2026 Prime
n = 25 27 digits Prime
n = 46 48 digits Prime
n = 65 68 digits Prime
n = 421 439 digits Prime
n = 733 764 digits Prime
n = 1120 1167 digits Prime
n = 1335 1391 digits Prime
n = 1353 1410 digits Prime
n = 2361 2459 digits Prime
n = 2576 2683 digits Prime
n = 4611 4802 digits PRP
n = 12237 12744 digits Oct 2006 PRP Lelio R Paula
n = 13097 13640 digits Oct 2006 PRP Lelio R Paula
n = 14151 14737 digits Oct 2006 PRP Lelio R Paula
n = 14839 15454 digits Oct 2006 PRP Lelio R Paula
n = 15706 16357 digits Oct 2006 PRP Lelio R Paula
n = 30740 32013 digits Aug 2012 PRP Lelio R Paula
n = 49330 51372 digits Jan 2013 PRP Lelio R Paula
n = 55068 57348 digits Feb 2013 PRP Lelio R Paula
b = 12
n = 2 3 digits Jun 2026 Prime
n = 6 7 digits Jun 2026 Prime
n = 16 18 digits Prime
n = 17 19 digits Prime
n = 18 20 digits Prime
n = 34 37 digits Prime
n = 44 48 digits Prime
n = 64 70 digits Prime
n = 76 83 digits Prime
n = 128 139 digits Prime
n = 166 180 digits Prime
n = 186 201 digits Prime
n = 462 499 digits Prime
n = 632 683 digits Prime
n = 902 974 digits Prime
n = 1722 1859 digits Prime
n = 3730 4026 digits PRP
n = 5718 6171 digits PRP
n = 7993 8626 digits PRP
n = 11848 12787 digits Sep 2006 PRP Lelio R Paula
n = 12396 13378 digits Sep 2006 PRP Lelio R Paula
n = 16392 17690 digits Dec 2006 PRP Lelio R Paula
n = 16945 18287 digits Dec 2006 PRP Lelio R Paula
n = 17218 18582 digits Feb 2007 PRP Lelio R Paula
n = 24289 26213 digits Aug 2012 PRP Lelio R Paula
n = 28258 30496 digits Aug 2012 PRP Lelio R Paula
n = 74428 80322 digits Nov 2015 PRP Lelio R Paula
n = 86965 93851 digits Jun 2016 PRP Lelio R Paula
n = 92684 100023 digits Jul 2016 PRP Lelio R Paula
b = 13
n = 4 5 digits Jun 2026 Prime
n = 11 13 digits Jun 2026 Prime
n = 17 19 digits Prime
n = 33 37 digits Prime
n = 53 60 digits Prime
n = 72 81 digits Prime
n = 384 428 digits Prime
n = 832 927 digits Prime
n = 2821 3143 digits Prime
n = 9296 10356 digits Nov 2006 PRP Lelio R Paula
n = 15537 17308 digits Nov 2006 PRP Lelio R Paula
n = 21705 24179 digits Aug 2012 PRP Lelio R Paula
n = 31715 35329 digits Aug 2012 PRP Lelio R Paula
n = 32452 36150 digits Sep 2012 PRP Lelio R Paula
n = 39409 43900 digits Oct 2012 PRP Lelio R Paula
b = 14
n = 2 3 digits Jun 2026 Prime
n = 3 4 digits Jun 2026 Prime
n = 10 12 digits Jun 2026 Prime
n = 13 15 digits Jun 2026 Prime
n = 28 33 digits Prime
n = 31 36 digits Prime
n = 66 76 digits Prime
n = 68 78 digits Prime
n = 98 113 digits Prime
n = 185 213 digits Prime
n = 260 298 digits Prime
n = 680 780 digits Prime
n = 903 1035 digits Prime
n = 1481 1698 digits Prime
n = 2063 2365 digits Prime
n = 7531 8632 digits PRP
n = 21838 25030 digits Aug 2012 PRP Lelio R Paula
n = 23268 26669 digits Aug 2012 PRP Lelio R Paula
n = 72072 82604 digits Nov 2015 PRP Lelio R Paula
b = 15
n = 3 4 digits Jun 2026 Prime
n = 5 6 digits Jun 2026 Prime
n = 59 70 digits Prime
n = 65 77 digits Prime
n = 221 260 digits Prime
n = 1771 2083 digits Prime
n = 6955 8180 digits PRP
n = 8551 10057 digits Dec 2006 PRP Lelio R Paula
n = 11075 13026 digits Dec 2006 PRP Lelio R Paula
n = 20255 23822 digits Aug 2012 PRP Lelio R Paula
n = 77445 91083 digits Jul 2016 PRP Lelio R Paula
b = 16
n = 2 3 digits Jun 2026 Prime
n = 3 4 digits Jun 2026 Prime
n = 4 5 digits Jun 2026 Prime
n = 5 7 digits Jun 2026 Prime
n = 6 8 digits Jun 2026 Prime
n = 8 10 digits Jun 2026 Prime
n = 9 11 digits Jun 2026 Prime
n = 11 14 digits Jun 2026 Prime
n = 24 29 digits Prime
n = 26 32 digits Prime
n = 38 46 digits Prime
n = 84 102 digits Prime
n = 111 134 digits Prime
n = 117 141 digits Prime
n = 122 147 digits Prime
n = 166 200 digits Prime
n = 202 244 digits Prime
n = 212 256 digits Prime
n = 908 1094 digits Prime
n = 1476 1778 digits Prime
n = 1587 1911 digits Prime
n = 2157 2598 digits Prime
n = 2306 2777 digits Prime
n = 2479 2986 digits Prime
n = 3284 3955 digits Prime
n = 4280 5154 digits Prime
n = 4392 5289 digits Prime
n = 4413 5314 digits Prime
n = 5140 6190 digits Prime
n = 7893 9505 digits PRP
n = 8411 10128 digits Nov 2001 PRP Paul Underwood
n = 32643 39307 digits Apr 2008 PRP Gary Barnes
n = 116216 139939 digits Sep 2017 PRP Lelio R Paula
n = 122665 147704 digits Dec 2017 PRP Lelio R Paula
n = 175076 210813 digits Jul 2022 PRP Stefano Morozzi
b = 17
n = 2 3 digits Jun 2026 Prime
n = 5 7 digits Jun 2026 Prime
n = 6 8 digits Jun 2026 Prime
n = 9 12 digits Jun 2026 Prime
n = 12 15 digits Jun 2026 Prime
n = 17 21 digits Prime
n = 49 61 digits Prime
n = 168 207 digits Prime
n = 234 288 digits Prime
n = 32234 39663 digits Oct 2012 PRP Lelio R Paula
b = 18
n = 3 4 digits Jun 2026 Prime
n = 13 17 digits Jun 2026 Prime
n = 15 19 digits Jun 2026 Prime
n = 25 32 digits Prime
n = 68 86 digits Prime
n = 73 92 digits Prime
n = 147 185 digits Prime
n = 216 272 digits Prime
n = 456 573 digits Prime
n = 2427 3047 digits Prime
n = 3768 4730 digits PRP
n = 9748 12237 digits Feb 2007 PRP Lelio R Paula
n = 10077 12650 digits Feb 2007 PRP Lelio R Paula
n = 15648 19643 digits Sep 2011 PRP Lelio R Paula
n = 18585 23330 digits Aug 2012 PRP Lelio R Paula
n = 25416 31905 digits Aug 2012 PRP Lelio R Paula
b = 19
n = 5 7 digits Jun 2026 Prime
n = 25 32 digits Prime
n = 179 229 digits Prime
n = 238 305 digits Prime
n = 330 422 digits Prime
n = 1120 1433 digits Prime
n = 1566 2003 digits Prime
n = 7618 9742 digits Prime
n = 20183 25810 digits Aug 2012 PRP Lelio R Paula
n = 46880 59948 digits Mar 2013 PRP Lelio R Paula
b = 20
n = 2 3 digits Jun 2026 Prime
n = 4 6 digits Jun 2026 Prime
n = 5 7 digits Jun 2026 Prime
n = 6 8 digits Jun 2026 Prime
n = 22 29 digits Prime
n = 41 54 digits Prime
n = 63 82 digits Prime
n = 184 240 digits Prime
n = 938 1221 digits Prime
n = 949 1235 digits Prime
n = 1266 1648 digits Prime
n = 1339 1743 digits Prime
n = 3665 4769 digits PRP
n = 3694 4807 digits PRP
n = 6868 8936 digits PRP
n = 7939 10329 digits Feb 2007 PRP Lelio R Paula
n = 9950 12946 digits Feb 2007 PRP Lelio R Paula
n = 11882 15459 digits Sep 2011 PRP Lelio R Paula
n = 13202 17177 digits Sep 2011 PRP Lelio R Paula
n = 89917 116985 digits Sep 2024 PRP Mark Rodenkirch
b = 21
n = 2 3 digits Jun 2026 Prime
n = 3 4 digits Jun 2026 Prime
n = 5 7 digits Jun 2026 Prime
n = 7 10 digits Jun 2026 Prime
n = 15 20 digits Jun 2026 Prime
n = 34 45 digits Prime
n = 2580 3412 digits Prime
n = 2589 3424 digits Prime
n = 3791 5013 digits Prime
n = 4465 5904 digits PRP
n = 8119 10736 digits Aug 2011 PRP Ray Chandler
n = 8626 11406 digits Aug 2011 PRP Ray Chandler
n = 14036 18559 digits Sep 2011 PRP Ray Chandler
n = 50562 66855 digits Sep 2024 PRP Mark Rodenkirch
n = 56780 75076 digits Sep 2024 PRP Mark Rodenkirch
n = 79725 105414 digits Sep 2024 PRP Mark Rodenkirch
b = 22
n = 2 3 digits Jun 2026 Prime
n = 9 13 digits Jun 2026 Prime
n = 10 14 digits Jun 2026 Prime
n = 16 22 digits Jun 2026 Prime
n = 22 30 digits Prime
n = 56 76 digits Prime
n = 125 168 digits Prime
n = 421 566 digits Prime
n = 1205 1618 digits Prime
n = 4040 5424 digits PRP
n = 4362 5856 digits PRP
n = 5224 7013 digits PRP
n = 12948 17382 digits PRP
n = 58025 77895 digits Sep 2024 PRP Mark Rodenkirch
n = 80712 108350 digits Sep 2024 PRP Mark Rodenkirch
b = 23
n = 3 5 digits Jun 2026 Prime
n = 4 6 digits Jun 2026 Prime
n = 11 15 digits Jun 2026 Prime
n = 16 22 digits Jun 2026 Prime
n = 451 615 digits Prime
n = 2412 3285 digits Prime
n = 2941 4005 digits Prime
n = 16619 22631 digits PRP
b = 24
n = 3 5 digits Jun 2026 Prime
n = 13 18 digits Jun 2026 Prime
n = 39 54 digits Prime
n = 1023 1412 digits Prime
n = 2303 3179 digits Prime
n = 2337 3226 digits Prime
n = 2877 3971 digits PRP
b = 25
n = 2 3 digits Jun 2026 Prime
n = 10 14 digits Jun 2026 Prime
n = 18 26 digits Jun 2026 Prime
n = 31 44 digits Prime
n = 33 47 digits Prime
n = 36 51 digits Prime
n = 51 72 digits Prime
n = 62 87 digits Prime
n = 73 103 digits Prime
n = 81 114 digits Prime
n = 5767 8062 digits PRP
n = 10455 14616 digits Sep 2006 PRP Lelio R Paula
n = 12623 17647 digits Sep 2006 PRP Lelio R Paula
n = 12825 17929 digits Sep 2006 PRP Lelio R Paula
n = 15242 21308 digits Apr 2012 PRP Lelio R Paula
n = 28951 40472 digits May 2012 PRP Lelio R Paula
n = 38327 53579 digits Oct 2012 PRP Lelio R Paula
b = 26
n = 4 6 digits Jun 2026 Prime
n = 20 29 digits Jun 2026 Prime
n = 41 59 digits Prime
n = 46 66 digits Prime
n = 50 71 digits Prime
n = 86 122 digits Prime
n = 166 235 digits Prime
n = 376 533 digits Prime
n = 496 702 digits Prime
n = 571 808 digits Prime
n = 646 915 digits Prime
n = 895 1267 digits Prime
n = 1145 1621 digits Prime
n = 35968 50894 digits Sep 2024 PRP Mark Rodenkirch
n = 74036 104759 digits Sep 2024 PRP Mark Rodenkirch
b = 27
n = 2 3 digits Jun 2026 Prime
n = 5 8 digits Jun 2026 Prime
n = 8 12 digits Jun 2026 Prime
n = 9 13 digits Jun 2026 Prime
n = 21 31 digits Jun 2026 Prime
n = 32 46 digits Prime
n = 44 63 digits Prime
n = 124 178 digits Prime
n = 144 207 digits Prime
n = 246 353 digits Prime
n = 566 811 digits Prime
n = 965 1382 digits Prime
n = 1272 1821 digits Prime
n = 2196 3144 digits Prime
n = 2222 3181 digits Prime
n = 3450 4939 digits Prime
n = 48602 69568 digits Sep 2013 PRP Lelio R Paula
n = 54500 78010 digits Dec 2013 PRP Robert Price
b = 28
n = 5 8 digits Jun 2026 Prime
n = 8 12 digits Jun 2026 Prime
n = 9 14 digits Jun 2026 Prime
n = 19 28 digits Jun 2026 Prime
n = 141 205 digits Prime
n = 209 303 digits Prime
n = 324 469 digits Prime
n = 1407 2037 digits Prime
n = 2047 2963 digits Prime
n = 14132 20452 digits PRP
b = 29
n = 2 3 digits Jun 2026 Prime
n = 3 5 digits Jun 2026 Prime
n = 13 20 digits Jun 2026 Prime
n = 14 21 digits Jun 2026 Prime
n = 16 24 digits Jun 2026 Prime
n = 18 27 digits Jun 2026 Prime
n = 97 142 digits Prime
n = 198 290 digits Prime
n = 218 319 digits Prime
n = 281 411 digits Prime
n = 716 1048 digits Prime
n = 3062 4478 digits Prime
n = 6176 9032 digits PRP
n = 8064 11793 digits Aug 2011 PRP Ray Chandler
n = 15488 22650 digits PRP
n = 17233 25202 digits PRP
n = 32032 46844 digits Sep 2024 PRP Mark Rodenkirch
n = 32662 47765 digits Sep 2024 PRP Mark Rodenkirch
n = 75157 109910 digits Sep 2024 PRP Mark Rodenkirch
n = 96047 140459 digits Sep 2024 PRP Mark Rodenkirch
b = 30
n = 5 8 digits Jun 2026 Prime
n = 7 11 digits Jun 2026 Prime
n = 11 17 digits Jun 2026 Prime
n = 14 21 digits Jun 2026 Prime
n = 33 49 digits Prime
n = 66 98 digits Prime
n = 73 108 digits Prime
n = 109 162 digits Prime
n = 126 187 digits Prime
n = 168 249 digits Prime
n = 853 1260 digits Prime
n = 1800 2659 digits Prime
n = 2613 3860 digits PRP
n = 8287 12241 digits PRP
n = 9108 13454 digits PRP
n = 9523 14067 digits PRP
n = 11839 17488 digits PRP
b = 31
n = 2 3 digits Jun 2026 Prime
n = 3 5 digits Jun 2026 Prime
n = 21 32 digits Jun 2026 Prime
n = 23 35 digits Jun 2026 Prime
n = 37 56 digits Prime
n = 78 117 digits Prime
n = 79 118 digits Prime
n = 219 327 digits Prime
n = 429 640 digits Prime
n = 1183 1765 digits Prime
n = 1333 1988 digits Prime
n = 1807 2695 digits Prime
b = 32
n = 2 4 digits Jun 2026 Prime
n = 18 28 digits Jun 2026 Prime
n = 38 58 digits Prime
n = 57 86 digits Prime
n = 88 133 digits Prime
n = 145 219 digits Prime
n = 301 454 digits Prime
n = 2429 3657 digits Prime
n = 3690 5555 digits Prime
n = 4257 6408 digits Prime
n = 5245 7895 digits Prime
n = 8013 12061 digits PRP
n = 10654 16036 digits PRP
n = 26766 40287 digits Apr 2010 PRP Lelio R Paula
n = 40918 61588 digits Aug 2011 PRP Lelio R Paula
b = 33
n = 7 11 digits Jun 2026 Prime
n = 205 312 digits Prime
n = 700 1063 digits Prime
n = 1252 1902 digits Prime
n = 1936 2940 digits Prime
n = 2760 4192 digits PRP
n = 3031 4603 digits PRP
b = 34
n = 5 8 digits Jun 2026 Prime
n = 16 25 digits Jun 2026 Prime
n = 29 45 digits Jun 2026 Prime
n = 40 62 digits Prime
n = 68 105 digits Prime
n = 96 148 digits Prime
n = 127 195 digits Prime
n = 336 515 digits Prime
n = 456 699 digits Prime
n = 2780 4258 digits PRP
n = 3518 5388 digits PRP
b = 35
n = 3 5 digits Jun 2026 Prime
n = 135 209 digits Prime
n = 141 218 digits Prime
n = 359 555 digits Prime
n = 679 1049 digits Prime
n = 1365 2108 digits Prime
n = 11551 17836 digits Sep 2011 PRP Ray Chandler
n = 30951 47791 digits Mar 2013 PRP Enzo Doria
b = 36
n = 2 4 digits Jun 2026 Prime
n = 3 5 digits Jun 2026 Prime
n = 5 8 digits Jun 2026 Prime
n = 7 11 digits Jun 2026 Prime
n = 32 50 digits Jun 2026 Prime
n = 35 55 digits Jun 2026 Prime
n = 88 137 digits Prime
n = 137 214 digits Prime
n = 147 229 digits Prime
n = 3697 5754 digits Prime
n = 10532 16391 digits Oct 2006 PRP Lelio R Paula
n = 11901 18522 digits Jan 2007 PRP Lelio R Paula
n = 17387 27060 digits Apr 2012 PRP Lelio R Paula
n = 32337 50327 digits Jun 2012 PRP Lelio R Paula
b = 37
n = 9 15 digits Jun 2026 Prime
n = 16 26 digits Jun 2026 Prime
n = 850 1333 digits Prime
n = 1576 2472 digits Prime
n = 9721 15245 digits Sep 2011 PRP Ray Chandler
b = 38
n = 3 5 digits Jun 2026 Prime
n = 11 18 digits Jun 2026 Prime
n = 32 51 digits Jun 2026 Prime
n = 81 128 digits Prime
n = 531 839 digits Prime
n = 944 1492 digits Prime
n = 7043 11127 digits PRP
n = 9531 15057 digits PRP
n = 10280 16241 digits PRP
n = 14531 22956 digits PRP
b = 39
n = 2 4 digits Jun 2026 Prime
n = 4 7 digits Jun 2026 Prime
n = 7 12 digits Jun 2026 Prime
n = 8 13 digits Jun 2026 Prime
n = 16 26 digits Jun 2026 Prime
n = 86 137 digits Prime
n = 87 139 digits Prime
n = 280 446 digits Prime
n = 519 826 digits Prime
n = 3925 6245 digits PRP
n = 10279 16355 digits Sep 2011 PRP Ray Chandler
b = 40
n = 2 4 digits Jun 2026 Prime
n = 4 7 digits Jun 2026 Prime
n = 10 17 digits Jun 2026 Prime
n = 72 116 digits Prime
n = 86 138 digits Prime
n = 4216 6755 digits PRP
b = 41
n = 3 5 digits Jun 2026 Prime
n = 6 10 digits Jun 2026 Prime
n = 7 12 digits Jun 2026 Prime
n = 9 15 digits Jun 2026 Prime
n = 21 34 digits Jun 2026 Prime
n = 23 38 digits Jun 2026 Prime
n = 27 44 digits Jun 2026 Prime
n = 63 102 digits Prime
n = 109 176 digits Prime
n = 121 196 digits Prime
n = 134 217 digits Prime
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n = 261 421 digits Prime
n = 639 1031 digits Prime
n = 871 1405 digits Prime
n = 1605 2589 digits Prime
n = 2781 4486 digits PRP
n = 3217 5189 digits Prime
n = 10467 16882 digits Sep 2011 PRP Ray Chandler
n = 12507 20172 digits Nov 2023 PRP Aurel Gibier
n = 12709 20497 digits Nov 2023 PRP Aurel Gibier
n = 13061 21065 digits Nov 2023 PRP Aurel Gibier
n = 34153 55082 digits Nov 2023 PRP Aurel Gibier
n = 35251 56853 digits Nov 2023 PRP Aurel Gibier
n = 55961 90253 digits Nov 2023 PRP Aurel Gibier
b = 42
n = 2 4 digits Jun 2026 Prime
n = 4 7 digits Jun 2026 Prime
n = 12 20 digits Jun 2026 Prime
n = 40 65 digits Jun 2026 Prime
n = 60 98 digits Prime
n = 192 312 digits Prime
n = 226 367 digits Prime
n = 392 637 digits Prime
n = 696 1130 digits Prime
n = 712 1156 digits Prime
n = 1042 1692 digits Prime
n = 1393 2262 digits Prime
n = 30777 49959 digits Mar 2025 PRP Vincent Gautier
b = 43
n = 31 51 digits Jun 2026 Prime
n = 32 53 digits Jun 2026 Prime
n = 87 143 digits Prime
n = 229 375 digits Prime
n = 1837 3001 digits Prime
n = 2271 3710 digits Prime
n = 7359 12021 digits Feb 2025 PRP Vincent Gautier
n = 13659 22312 digits Mar 2025 PRP Vincent Gautier
n = 29463 48127 digits Mar 2025 PRP Vincent Gautier
b = 44
n = 4 7 digits Jun 2026 Prime
n = 5 9 digits Jun 2026 Prime
n = 49 81 digits Prime
n = 50 83 digits Prime
n = 113 186 digits Prime
n = 267 439 digits Prime
n = 447 735 digits Prime
n = 1206 1983 digits Prime
n = 3364 5529 digits PRP
n = 6005 9869 digits Feb 2025 PRP Vincent Gautier
n = 8644 14207 digits Feb 2025 PRP Vincent Gautier
n = 29791 48961 digits Feb 2025 PRP Vincent Gautier
b = 45
n = 2 4 digits Jun 2026 Prime
n = 3 5 digits Jun 2026 Prime
n = 6 10 digits Jun 2026 Prime
n = 8 14 digits Jun 2026 Prime
n = 26 43 digits Jun 2026 Prime
n = 41 68 digits Jun 2026 Prime
n = 47 78 digits Prime
n = 51 85 digits Prime
n = 74 123 digits Prime
n = 392 649 digits Prime
n = 743 1229 digits Prime
n = 746 1234 digits Prime
n = 1872 3095 digits Prime
n = 2724 4504 digits PRP
n = 3209 5306 digits PRP
n = 3881 6417 digits PRP
n = 6176 10211 digits Feb 2025 PRP Vincent Gautier
n = 11429 18895 digits Mar 2025 PRP Vincent Gautier
n = 12666 20940 digits Mar 2025 PRP Vincent Gautier
n = 13062 21595 digits Mar 2025 PRP Vincent Gautier
n = 29762 49203 digits Mar 2025 PRP Vincent Gautier
n = 30320 50126 digits Mar 2025 PRP Vincent Gautier
n = 35065 57970 digits Mar 2025 PRP Vincent Gautier
b = 46
n = 2 4 digits Jun 2026 Prime
n = 7 12 digits Jun 2026 Prime
n = 29 49 digits Jun 2026 Prime
n = 71 119 digits Prime
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n = 459 764 digits Prime
n = 504 839 digits Prime
n = 6083 10115 digits Feb 2025 PRP Vincent Gautier
n = 22265 37022 digits Mar 2025 PRP Vincent Gautier
n = 32864 54645 digits Mar 2025 PRP Vincent Gautier
n = 34129 56749 digits Mar 2025 PRP Vincent Gautier
b = 47
n = 2 4 digits Jun 2026 Prime
n = 10 17 digits Jun 2026 Prime
n = 12 21 digits Jun 2026 Prime
n = 16 27 digits Jun 2026 Prime
n = 18 31 digits Jun 2026 Prime
n = 205 343 digits Prime
n = 4361 7293 digits PRP
n = 20000 33442 digits Mar 2025 PRP Vincent Gautier
b = 48
n = 3 6 digits Jun 2026 Prime
n = 5 9 digits Jun 2026 Prime
n = 23 39 digits Jun 2026 Prime
n = 29 49 digits Jun 2026 Prime
n = 179 301 digits Prime
n = 183 308 digits Prime
n = 185 312 digits Prime
n = 1941 3264 digits Prime
n = 7283 12245 digits Feb 2025 PRP Vincent Gautier
n = 24645 41435 digits Mar 2025 PRP Vincent Gautier
b = 49
n = 2 4 digits Jun 2026 Prime
n = 7 12 digits Jun 2026 Prime
n = 9 16 digits Jun 2026 Prime
n = 13 22 digits Jun 2026 Prime
n = 35 60 digits Jun 2026 Prime
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n = 64 109 digits Prime
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n = 866 1464 digits Prime
n = 1406 2377 digits Prime
n = 10513 17770 digits Oct 2006 PRP Lelio R Paula
n = 20055 33897 digits May 2012 PRP Lelio R Paula
n = 33173 56069 digits Oct 2012 PRP Lelio R Paula
n = 57626 97400 digits Jul 2016 PRP Lelio R Paula
n = 58423 98747 digits Aug 2016 PRP Lelio R Paula
b = 50
n = 4 7 digits Jun 2026 Prime
n = 5 9 digits Jun 2026 Prime
n = 8 14 digits Jun 2026 Prime
n = 9 16 digits Jun 2026 Prime
n = 10 17 digits Jun 2026 Prime
n = 15 26 digits Jun 2026 Prime
n = 27 46 digits Jun 2026 Prime
n = 65 111 digits Prime
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n = 840 1428 digits Prime
n = 3458 5876 digits PRP
b = 51
n = 2 4 digits Jun 2026 Prime
n = 30 52 digits Jun 2026 Prime
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n = 1011 1727 digits Prime
n = 1161 1983 digits Prime
b = 52
n = 108 186 digits Prime
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n = 1254 2152 digits Prime
b = 53
n = 4 7 digits Jun 2026 Prime
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n = 11 19 digits Jun 2026 Prime
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n = 1272 2194 digits Prime
n = 2656 4580 digits PRP
b = 54
n = 2 4 digits Jun 2026 Prime
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b = 55
n = 2 4 digits Jun 2026 Prime
n = 3 6 digits Jun 2026 Prime
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n = 6 11 digits Jun 2026 Prime
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n = 27 47 digits Jun 2026 Prime
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b = 56
n = 2 4 digits Jun 2026 Prime
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b = 57
n = 2 4 digits Jun 2026 Prime
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n = 3206 5630 digits PRP
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b = 58
n = 3 6 digits Jun 2026 Prime
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n = 3572 6299 digits PRP
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n = 3 6 digits Jun 2026 Prime
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n = 3303 5850 digits PRP
b = 60
n = 2 4 digits Jun 2026 Prime
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n = 96 171 digits Prime
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n = 2071 3683 digits Prime
n = 3628 6452 digits PRP
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n = 2 4 digits Jun 2026 Prime
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n = 25 45 digits Jun 2026 Prime
n = 28 50 digits Jun 2026 Prime
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b = 62
n = 18 33 digits Jun 2026 Prime
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n = 3510 6292 digits PRP
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n = 7 13 digits Jun 2026 Prime
n = 19 35 digits Jun 2026 Prime
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n = 2153 3874 digits Prime
n = 4249 7646 digits PRP
b = 64
n = 3 6 digits Jun 2026 Prime
n = 6 11 digits Jun 2026 Prime
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n = 8 15 digits Jun 2026 Prime
n = 35 64 digits Jun 2026 Prime
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n = 88 159 digits Prime
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n = 3781 6830 digits Prime
n = 4221 7624 digits Prime
n = 6422 11600 digits Nov 2001 PRP Paul Underwood
n = 22641 40894 digits Apr 2010 PRP Lelio R Paula
n = 38327 69226 digits Feb 2012 PRP Lelio R Paula
n = 45461 82111 digits Jun 2012 PRP Lelio R Paula
n = 49082 88651 digits Oct 2012 PRP Lelio R Paula
n = 73566 132874 digits Aug 2017 PRP Lelio R Paula
n = 74571 134689 digits Aug 2017 PRP Lelio R Paula
b = 65
n = 2 4 digits Jun 2026 Prime
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n = 29 53 digits Jun 2026 Prime
n = 36 66 digits Jun 2026 Prime
n = 83 151 digits Prime
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n = 2030 3681 digits PRP
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b = 66
n = 2 4 digits Jun 2026 Prime
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b = 67
n = 2 4 digits Jun 2026 Prime
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b = 68
n = 4 8 digits Jun 2026 Prime
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n = 4655 8531 digits PRP
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n = 2 4 digits Jun 2026 Prime
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n = 3 6 digits Jun 2026 Prime
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n = 2 4 digits Jun 2026 Prime
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n = 11 21 digits Jun 2026 Prime
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n = 5034 9320 digits PRP
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b = 72
n = 5 10 digits Jun 2026 Prime
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b = 73
n = 32 60 digits Jun 2026 Prime
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n = 108 202 digits Prime
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n = 5 10 digits Jun 2026 Prime
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n = 1727 3239 digits PRP
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b = 76
n = 3 6 digits Jun 2026 Prime
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n = 2275 4279 digits PRP
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n = 2 4 digits Jun 2026 Prime
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n = 3030 5717 digits PRP
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n = 11 21 digits Jun 2026 Prime
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n = 2388 4519 digits PRP
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n = 4 8 digits Jun 2026 Prime
n = 7 14 digits Jun 2026 Prime
n = 15 29 digits Jun 2026 Prime
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n = 2515 4773 digits PRP
b = 80
n = 15 29 digits Jun 2026 Prime
b = 81
n = 3 6 digits Jun 2026 Prime
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n = 2620 5001 digits Prime
n = 3616 6902 digits PRP
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n = 4 8 digits Jun 2026 Prime
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b = 83
n = 19 37 digits Jun 2026 Prime
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n = 2339 4489 digits PRP
n = 8075 15497 digits PRP
n = 15731 30190 digits Apr 2018 PRP Eric Chen
n = 20287 38933 digits Apr 2018 PRP Eric Chen
n = 23977 46014 digits Apr 2018 PRP Eric Chen
b = 84
n = 2 4 digits Jun 2026 Prime
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n = 6 12 digits Jun 2026 Prime
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n = 2055 3955 digits PRP
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b = 85
n = 6 12 digits Jun 2026 Prime
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n = 3413 6586 digits PRP
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b = 86
n = 2 4 digits Jun 2026 Prime
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n = 2849 5512 digits PRP
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b = 87
n = 2 4 digits Jun 2026 Prime
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b = 88
n = 11 22 digits Jun 2026 Prime
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n = 36 71 digits Jun 2026 Prime
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b = 89
n = 107 209 digits Prime
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n = 3116 6075 digits PRP
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n = 2 4 digits Jun 2026 Prime
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n = 42 83 digits Jun 2026 Prime
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b = 92
n = 4 8 digits Jun 2026 Prime
n = 6 12 digits Jun 2026 Prime
n = 1200 2357 digits Prime
n = 2214 4348 digits PRP
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n = 39 77 digits Jun 2026 Prime
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b = 94
n = 2 4 digits Jun 2026 Prime
n = 6 12 digits Jun 2026 Prime
n = 11 22 digits Jun 2026 Prime
n = 15 30 digits Jun 2026 Prime
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b = 95
n = 2 4 digits Jun 2026 Prime
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n = 40 80 digits Jun 2026 Prime
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b = 96
n = 6 12 digits Jun 2026 Prime
n = 13 26 digits Jun 2026 Prime
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n = 2521 4998 digits Prime
b = 97
n = 2 4 digits Jun 2026 Prime
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n = 12 24 digits Jun 2026 Prime
n = 16 32 digits Jun 2026 Prime
n = 29 58 digits Jun 2026 Prime
n = 41 82 digits Jun 2026 Prime
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n = 1504 2989 digits Prime
n = 1916 3807 digits PRP
b = 98
n = 3 6 digits Jun 2026 Prime
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n = 2487 4953 digits PRP
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b = 99
n = 131 262 digits Prime
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n = 2387 4764 digits PRP
b = 100
n = 6 13 digits Jun 2026 Prime
n = 358 717 digits Prime
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n = 1521 3043 digits Prime
n = 1904 3809 digits Prime
n = 5155 10311 digits Oct 2002 PRP Milton L. Brown
n = 5218 10437 digits Mar 2003 PRP Milton L. Brown
n = 6394 12789 digits Jan 2011 PRP Serge Batalov
n = 13147 26295 digits Jan 2011 PRP Serge Batalov
n = 34293 68587 digits Sep 2021 PRP Robert Price
b = 101
n = 2 5 digits Jun 2026 Prime
n = 5 11 digits Jun 2026 Prime
n = 32 65 digits Jun 2026 Prime
n = 49 99 digits Jun 2026 Prime
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n = 110 221 digits Prime
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n = 312 626 digits Prime
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n = 1674 3356 digits PRP
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n = 3439 6893 digits PRP
b = 102
n = 2 5 digits Jun 2026 Prime
n = 10 21 digits Jun 2026 Prime
n = 13 27 digits Jun 2026 Prime
n = 26 53 digits Jun 2026 Prime
n = 46 93 digits Jun 2026 Prime
n = 50 101 digits Jun 2026 Prime
n = 65 131 digits Jun 2026 Prime
n = 96 193 digits Jun 2026 Prime
n = 422 848 digits Prime
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n = 1692 3399 digits Prime
n = 2277 4574 digits PRP
b = 103
n = 5 11 digits Jun 2026 Prime
n = 8 17 digits Jun 2026 Prime
n = 25 51 digits Jun 2026 Prime
n = 55 111 digits Jun 2026 Prime
n = 60 121 digits Jun 2026 Prime
n = 68 137 digits Jun 2026 Prime
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b = 104
n = 2 5 digits Jun 2026 Prime
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n = 14 29 digits Jun 2026 Prime
n = 18 37 digits Jun 2026 Prime
n = 20 41 digits Jun 2026 Prime
n = 28 57 digits Jun 2026 Prime
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n = 902 1820 digits Prime
n = 2251 4541 digits PRP
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b = 105
n = 5 11 digits Jun 2026 Prime
n = 7 15 digits Jun 2026 Prime
n = 45 91 digits Jun 2026 Prime
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n = 2422 4896 digits PRP
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n = 8 17 digits Jun 2026 Prime
n = 11 23 digits Jun 2026 Prime
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n = 23 47 digits Jun 2026 Prime
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n = 6 13 digits Jun 2026 Prime
n = 10 21 digits Jun 2026 Prime
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n = 3 7 digits Jun 2026 Prime
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n = 1313 2670 digits Prime
n = 2393 4866 digits PRP
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b = 109
n = 5 11 digits Jun 2026 Prime
n = 6 13 digits Jun 2026 Prime
n = 12 25 digits Jun 2026 Prime
n = 24 49 digits Jun 2026 Prime
n = 25 51 digits Jun 2026 Prime
n = 26 53 digits Jun 2026 Prime
n = 40 82 digits Jun 2026 Prime
n = 44 90 digits Jun 2026 Prime
n = 66 135 digits Jun 2026 Prime
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n = 3372 6871 digits PRP
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n = 4 9 digits Jun 2026 Prime
n = 166 339 digits Prime
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n = 2580 5267 digits PRP
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n = 3 7 digits Jun 2026 Prime
n = 4 9 digits Jun 2026 Prime
n = 10 21 digits Jun 2026 Prime
n = 19 39 digits Jun 2026 Prime
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b = 112
n = 4 9 digits Jun 2026 Prime
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n = 12 25 digits Jun 2026 Prime
n = 34 70 digits Jun 2026 Prime
n = 100 205 digits Jun 2026 Prime
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n = 3254 6669 digits PRP
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b = 113
n = 3 7 digits Jun 2026 Prime
n = 5 11 digits Jun 2026 Prime
n = 7 15 digits Jun 2026 Prime
n = 16 33 digits Jun 2026 Prime
n = 21 44 digits Jun 2026 Prime
n = 36 74 digits Jun 2026 Prime
n = 161 331 digits Prime
n = 317 651 digits Prime
n = 2568 5273 digits PRP
n = 5972 12261 digits PRP
n = 7861 16140 digits PRP
n = 21328 43789 digits Mar 2018 PRP Eric Chen
b = 114
n = 10 21 digits Jun 2026 Prime
n = 31 64 digits Jun 2026 Prime
n = 94 194 digits Jun 2026 Prime
n = 108 223 digits Jun 2026 Prime
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n = 1200 2469 digits Prime
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n = 2 5 digits Jun 2026 Prime
n = 3 7 digits Jun 2026 Prime
n = 37 77 digits Jun 2026 Prime
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n = 74 153 digits Jun 2026 Prime
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n = 1917 3951 digits PRP
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b = 116
n = 2 5 digits Jun 2026 Prime
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n = 132 273 digits Prime
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n = 442 913 digits Prime
n = 2900 5987 digits PRP
b = 117
n = 5 11 digits Jun 2026 Prime
n = 6 13 digits Jun 2026 Prime
n = 17 36 digits Jun 2026 Prime
n = 126 261 digits Prime
n = 517 1070 digits Prime
b = 118
n = 9 19 digits Jun 2026 Prime
n = 11 23 digits Jun 2026 Prime
n = 20 42 digits Jun 2026 Prime
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b = 119
n = 3 7 digits Jun 2026 Prime
n = 44 92 digits Jun 2026 Prime
n = 95 198 digits Jun 2026 Prime
n = 1687 3502 digits PRP
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n = 2109 4378 digits PRP
n = 3069 6370 digits PRP
b = 120
n = 17 36 digits Jun 2026 Prime
n = 19 40 digits Jun 2026 Prime
n = 29 61 digits Jun 2026 Prime
n = 279 581 digits Prime
n = 2303 4789 digits PRP
b = 121
n = 2 5 digits Jun 2026 Prime
n = 42 88 digits Jun 2026 Prime
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n = 756 1575 digits Prime
n = 837 1744 digits Prime
n = 1756 3658 digits Prime
n = 1895 3947 digits PRP
n = 5564 11589 digits Oct 2006 PRP Lelio R Paula
b = 122
n = 29 61 digits Jun 2026 Prime
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n = 141 295 digits Prime
n = 197 412 digits Prime
n = 4148 8655 digits PRP
n = 15908 33190 digits Apr 2018 PRP Eric Chen
b = 123
n = 3 7 digits Jun 2026 Prime
n = 4 9 digits Jun 2026 Prime
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n = 795 1662 digits Prime
n = 1121 2343 digits Prime
n = 1127 2356 digits Prime
n = 17405 36375 digits Apr 2018 PRP Eric Chen
b = 124
n = 8 17 digits Jun 2026 Prime
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n = 443 928 digits Prime
n = 961 2012 digits Prime
n = 1201 2515 digits Prime
n = 2870 6009 digits PRP
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b = 125
n = 29 61 digits Jun 2026 Prime
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n = 603 1265 digits Prime
n = 4093 8583 digits PRP
n = 8938 18743 digits Feb 2007 PRP Lelio R Paula
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n = 2 5 digits Jun 2026 Prime
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n = 2464 5176 digits PRP
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n = 2 5 digits Jun 2026 Prime
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n = 2726 5735 digits PRP
b = 128
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n = 952 2007 digits Prime
n = 15747 33183 digits Aug 2010 PRP Lelio R Paula
b = 129
n = 37 79 digits Jun 2026 Prime
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b = 130
n = 3 7 digits Jun 2026 Prime
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n = 4829 10225 digits PRP
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n = 2 5 digits Jun 2026 Prime
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n = 59 127 digits Jun 2026 Prime
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n = 2 5 digits Jun 2026 Prime
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n = 2083 4464 digits PRP
n = 8785 18827 digits May 2012 PRP Enzo Doria
b = 140
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n = 2353 5050 digits PRP
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b = 143
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n = 1722 3717 digits PRP
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n = 1524 3303 digits PRP
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n = 2638 5733 digits PRP
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n = 2 5 digits Jun 2026 Prime
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n = 1838 4026 digits PRP
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n = 2 5 digits Jun 2026 Prime
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n = 3531 7744 digits PRP
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n = 1612 3558 digits PRP
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n = 38 84 digits Jun 2026 Prime
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n = 4103 9088 digits PRP
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n = 7 16 digits Jun 2026 Prime
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n = 25 56 digits Jun 2026 Prime
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n = 3671 8179 digits PRP
n = 4676 10418 digits Nov 2006 PRP Lelio R Paula
b = 170
n = 2 5 digits Jun 2026 Prime
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n = 3061 6828 digits PRP
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n = 9 21 digits Jun 2026 Prime
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n = 2597 5800 digits PRP
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n = 2 5 digits Jun 2026 Prime
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n = 7 16 digits Jun 2026 Prime
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n = 2087 4671 digits PRP
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n = 3 7 digits Jun 2026 Prime
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n = 1570 3518 digits PRP
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n = 2 5 digits Jun 2026 Prime
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n = 900 2019 digits Prime
n = 2133 4785 digits PRP
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n = 3 7 digits Jun 2026 Prime
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n = 2266 5089 digits PRP
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n = 2 5 digits Jun 2026 Prime
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n = 5 12 digits Jun 2026 Prime
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n = 41 93 digits Jun 2026 Prime
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n = 2 5 digits Jun 2026 Prime
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b = 182
n = 2 5 digits Jun 2026 Prime
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n = 920 2080 digits Prime
n = 3017 6819 digits PRP
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n = 3 7 digits Jun 2026 Prime
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n = 2930 6650 digits PRP
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n = 2 5 digits Jun 2026 Prime
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b = 188
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n = 2 5 digits Jun 2026 Prime
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n = 562 1281 digits Prime
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n = 3 7 digits Jun 2026 Prime
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n = 1440 3285 digits PRP
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b = 192
n = 2 5 digits Jun 2026 Prime
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n = 9 21 digits Jun 2026 Prime
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n = 2087 4780 digits PRP
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n = 2 5 digits Jun 2026 Prime
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n = 2 5 digits Jun 2026 Prime
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b = 198
n = 4 10 digits Jun 2026 Prime
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n = 504 1158 digits Prime
n = 4984 11447 digits PRP
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n = 157 361 digits Jun 2026 Prime
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b = 200
n = 2 5 digits Jun 2026 Prime
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n = 1526 3512 digits Prime
n = 1575 3625 digits PRP
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b = 201
n = 17 40 digits Jun 2026 Prime
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n = 1402 3230 digits Prime
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b = 202
n = 133 307 digits Jun 2026 Prime
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n = 4653 10737 digits PRP
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n = 1432 3308 digits PRP
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n = 3336 7705 digits PRP
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n = 3625 8373 digits PRP
n = 8192 18921 digits Nov 2023 PRP Aurel Gibier
n = 9850 22750 digits Nov 2023 PRP Aurel Gibier
n = 23322 53866 digits Nov 2023 PRP Aurel Gibier
b = 205
n = 8 19 digits Jun 2026 Prime
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b = 206
n = 3 7 digits Jun 2026 Prime
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b = 207
n = 2 5 digits Jun 2026 Prime
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n = 42 98 digits Jun 2026 Prime
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b = 208
n = 12 28 digits Jun 2026 Prime
n = 17 40 digits Jun 2026 Prime
n = 19 45 digits Jun 2026 Prime
n = 20 47 digits Jun 2026 Prime
n = 25 58 digits Jun 2026 Prime
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n = 491 1139 digits Prime
n = 4939 11449 digits PRP
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n = 6 14 digits Jun 2026 Prime
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n = 1877 4355 digits PRP
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n = 2 5 digits Jun 2026 Prime
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b = 211
n = 6 14 digits Jun 2026 Prime
n = 15 35 digits Jun 2026 Prime
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n = 3926 9126 digits PRP
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b = 212
n = 10 24 digits Jun 2026 Prime
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b = 213
n = 643 1498 digits Prime
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n = 3 7 digits Jun 2026 Prime
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n = 9 21 digits Jun 2026 Prime
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b = 215
n = 22342 52112 digits Apr 2018 PRP Karsten Bonath
b = 216
n = 2 5 digits Jun 2026 Prime
n = 46 108 digits Jun 2026 Prime
n = 145 339 digits Jun 2026 Prime
n = 2771 6469 digits PRP
n = 4711 10998 digits Sep 2006 PRP Lelio R Paula
b = 217
n = 17 40 digits Jun 2026 Prime
n = 374 874 digits Prime
n = 824 1926 digits Prime
b = 218
n = 5 12 digits Jun 2026 Prime
n = 33 78 digits Jun 2026 Prime
n = 44 103 digits Jun 2026 Prime
n = 119 279 digits Jun 2026 Prime
n = 2733 6392 digits PRP
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b = 219
n = 2 5 digits Jun 2026 Prime
n = 8 19 digits Jun 2026 Prime
n = 13 31 digits Jun 2026 Prime
n = 19 45 digits Jun 2026 Prime
n = 31 73 digits Jun 2026 Prime
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b = 220
n = 2 5 digits Jun 2026 Prime
n = 3 8 digits Jun 2026 Prime
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n = 17 40 digits Jun 2026 Prime
n = 29 68 digits Jun 2026 Prime
n = 119 279 digits Jun 2026 Prime
n = 151 354 digits Jun 2026 Prime
n = 181 424 digits Jun 2026 Prime
n = 195 457 digits Jun 2026 Prime
n = 1176 2755 digits Prime
b = 221
n = 2 5 digits Jun 2026 Prime
n = 3 8 digits Jun 2026 Prime
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n = 12 29 digits Jun 2026 Prime
n = 24 57 digits Jun 2026 Prime
n = 25 59 digits Jun 2026 Prime
n = 44 104 digits Jun 2026 Prime
n = 59 139 digits Jun 2026 Prime
n = 80 188 digits Jun 2026 Prime
n = 100 235 digits Jun 2026 Prime
n = 301 706 digits Prime
n = 1571 3684 digits PRP
n = 2053 4814 digits PRP
n = 3659 8579 digits PRP
n = 4082 9570 digits PRP
b = 222
n = 20 47 digits Jun 2026 Prime
n = 24 57 digits Jun 2026 Prime
n = 182 428 digits Jun 2026 Prime
n = 354 831 digits Prime
n = 580 1361 digits Prime
n = 746 1751 digits Prime
b = 223
n = 31 73 digits Jun 2026 Prime
n = 1301 3056 digits Prime
b = 224
n = 23 55 digits Jun 2026 Prime
n = 43 102 digits Jun 2026 Prime
n = 73 172 digits Jun 2026 Prime
b = 225
n = 8 19 digits Jun 2026 Prime
n = 9 22 digits Jun 2026 Prime
n = 12 29 digits Jun 2026 Prime
n = 22 52 digits Jun 2026 Prime
n = 100 236 digits Jun 2026 Prime
n = 1529 3597 digits PRP
n = 2255 5305 digits PRP
b = 226
n = 2 5 digits Jun 2026 Prime
n = 12 29 digits Jun 2026 Prime
n = 39 92 digits Jun 2026 Prime
n = 94 222 digits Jun 2026 Prime
n = 161 380 digits Jun 2026 Prime
n = 289 681 digits Prime
n = 444 1046 digits Prime
n = 3560 8381 digits PRP
b = 227
n = 6 15 digits Jun 2026 Prime
n = 20 48 digits Jun 2026 Prime
b = 228
n = 25 59 digits Jun 2026 Prime
n = 65 154 digits Jun 2026 Prime
n = 359 847 digits Prime
n = 1549 3653 digits PRP
n = 3984 9395 digits PRP
b = 229
n = 4 10 digits Jun 2026 Prime
n = 7 17 digits Jun 2026 Prime
n = 11 26 digits Jun 2026 Prime
n = 131 310 digits Jun 2026 Prime
n = 212 501 digits Jun 2026 Prime
n = 916 2162 digits Prime
n = 1727 4076 digits PRP
n = 3118 7358 digits PRP
b = 230
n = 3 8 digits Jun 2026 Prime
n = 4 10 digits Jun 2026 Prime
n = 46 109 digits Jun 2026 Prime
n = 1455 3437 digits Prime
n = 2133 5038 digits Prime
n = 3650 8621 digits PRP
n = 4710 11124 digits PRP
b = 231
n = 2 5 digits Jun 2026 Prime
n = 4 10 digits Jun 2026 Prime
n = 10 24 digits Jun 2026 Prime
n = 130 308 digits Jun 2026 Prime
n = 139 329 digits Jun 2026 Prime
n = 143 338 digits Jun 2026 Prime
n = 179 424 digits Jun 2026 Prime
n = 300 710 digits Prime
n = 1249 2953 digits Prime
n = 1979 4678 digits PRP
n = 2483 5869 digits PRP
n = 2890 6831 digits PRP
n = 4918 11625 digits PRP
b = 232
n = 2 5 digits Jun 2026 Prime
n = 245 580 digits Prime
n = 560 1325 digits Prime
n = 2268 5365 digits PRP
n = 4225 9995 digits PRP
b = 233
n = 19 45 digits Jun 2026 Prime
n = 175 415 digits Jun 2026 Prime
n = 653 1546 digits Prime
b = 234
n = 2 5 digits Jun 2026 Prime
n = 7 17 digits Jun 2026 Prime
n = 11 27 digits Jun 2026 Prime
n = 25 60 digits Jun 2026 Prime
n = 92 218 digits Jun 2026 Prime
n = 446 1057 digits Prime
n = 4668 11060 digits PRP
b = 235
n = 9 22 digits Jun 2026 Prime
n = 11 27 digits Jun 2026 Prime
n = 46 110 digits Jun 2026 Prime
n = 125 297 digits Jun 2026 Prime
n = 141 335 digits Jun 2026 Prime
n = 145 344 digits Jun 2026 Prime
n = 280 664 digits Prime
n = 428 1015 digits Prime
n = 483 1146 digits Prime
n = 1028 2438 digits Prime
n = 1050 2490 digits Prime
n = 2048 4856 digits PRP
n = 3643 8638 digits PRP
n = 4879 11569 digits PRP
b = 236
n = 7 17 digits Jun 2026 Prime
n = 8 19 digits Jun 2026 Prime
n = 26 62 digits Jun 2026 Prime
n = 110 262 digits Jun 2026 Prime
n = 125 297 digits Jun 2026 Prime
n = 1010 2397 digits Prime
b = 237
n = 2 5 digits Jun 2026 Prime
n = 36 86 digits Jun 2026 Prime
n = 74 176 digits Jun 2026 Prime
n = 814 1934 digits Prime
n = 1044 2480 digits Prime
n = 1474 3501 digits Prime
n = 2426 5762 digits PRP
n = 3818 9067 digits PRP
b = 238
n = 12 29 digits Jun 2026 Prime
n = 48 115 digits Jun 2026 Prime
n = 507 1205 digits Prime
n = 860 2044 digits Prime
b = 239
n = 3 8 digits Jun 2026 Prime
n = 4 10 digits Jun 2026 Prime
n = 9 22 digits Jun 2026 Prime
n = 13 31 digits Jun 2026 Prime
n = 16 39 digits Jun 2026 Prime
n = 24 58 digits Jun 2026 Prime
n = 115 274 digits Jun 2026 Prime
n = 128 305 digits Jun 2026 Prime
n = 157 374 digits Jun 2026 Prime
n = 194 462 digits Jun 2026 Prime
n = 205 488 digits Jun 2026 Prime
n = 525 1249 digits Prime
n = 945 2248 digits Prime
b = 240
n = 5 12 digits Jun 2026 Prime
n = 17 41 digits Jun 2026 Prime
n = 35 84 digits Jun 2026 Prime
n = 46 110 digits Jun 2026 Prime
n = 58 139 digits Jun 2026 Prime
n = 59 141 digits Jun 2026 Prime
n = 68 162 digits Jun 2026 Prime
n = 166 396 digits Jun 2026 Prime
n = 224 534 digits Jun 2026 Prime
b = 241
n = 2 5 digits Jun 2026 Prime
n = 3 8 digits Jun 2026 Prime
n = 26 62 digits Jun 2026 Prime
n = 80 191 digits Jun 2026 Prime
n = 120 286 digits Jun 2026 Prime
n = 195 465 digits Jun 2026 Prime
n = 228 544 digits Jun 2026 Prime
b = 242
n = 2 5 digits Jun 2026 Prime
n = 353 842 digits Prime
n = 1504 3586 digits PRP
n = 3013 7183 digits PRP
b = 243
n = 68 163 digits Jun 2026 Prime
n = 556 1327 digits Prime
n = 4760 11356 digits Oct 2006 PRP Lelio R Paula
b = 244
n = 9 22 digits Jun 2026 Prime
n = 23 55 digits Jun 2026 Prime
n = 104 249 digits Jun 2026 Prime
n = 963 2300 digits Prime
n = 1065 2543 digits Prime
n = 1552 3706 digits PRP
n = 1666 3978 digits PRP
n = 4844 11565 digits PRP
b = 245
n = 2 5 digits Jun 2026 Prime
n = 7 17 digits Jun 2026 Prime
n = 11 27 digits Jun 2026 Prime
n = 91 218 digits Jun 2026 Prime
n = 108 259 digits Jun 2026 Prime
n = 471 1126 digits Prime
n = 1137 2717 digits Prime
n = 2056 4913 digits PRP
n = 2616 6251 digits PRP
b = 246
n = 748 1789 digits Prime
n = 983 2351 digits Prime
b = 247
n = 2 5 digits Jun 2026 Prime
n = 14 34 digits Jun 2026 Prime
n = 21 51 digits Jun 2026 Prime
n = 28 67 digits Jun 2026 Prime
n = 64 154 digits Jun 2026 Prime
n = 1320 3159 digits Prime
b = 248
n = 5 12 digits Jun 2026 Prime
n = 39 94 digits Jun 2026 Prime
n = 224 537 digits Jun 2026 Prime
n = 500 1198 digits Prime
n = 691 1655 digits Prime
n = 788 1887 digits Prime
n = 1237 2962 digits Prime
n = 2439 5841 digits PRP
b = 249
n = 2 5 digits Jun 2026 Prime
n = 5 12 digits Jun 2026 Prime
n = 7 17 digits Jun 2026 Prime
n = 17 41 digits Jun 2026 Prime
n = 22 53 digits Jun 2026 Prime
n = 63 151 digits Jun 2026 Prime
n = 204 489 digits Jun 2026 Prime
n = 290 695 digits Prime
n = 684 1640 digits Prime
n = 742 1778 digits Prime
n = 1025 2457 digits Prime
n = 1338 3207 digits Prime
n = 1575 3775 digits PRP
n = 1614 3868 digits PRP
n = 3552 8512 digits PRP
b = 250
n = 5 12 digits Jun 2026 Prime
n = 41 99 digits Jun 2026 Prime
n = 136 327 digits Jun 2026 Prime
n = 1846 4427 digits PRP
b = 251
n = 4 10 digits Jun 2026 Prime
n = 10 24 digits Jun 2026 Prime
n = 64 154 digits Jun 2026 Prime
n = 86 207 digits Jun 2026 Prime
n = 102 245 digits Jun 2026 Prime
n = 196 471 digits Jun 2026 Prime
n = 547 1313 digits Prime
n = 968 2323 digits Prime
n = 11074 26574 digits May 2012 PRP Enzo Doria
b = 252
n = 5 13 digits Jun 2026 Prime
n = 13 32 digits Jun 2026 Prime
n = 62 149 digits Jun 2026 Prime
n = 297 714 digits Prime
n = 338 812 digits Prime
n = 666 1600 digits Prime
n = 858 2061 digits Prime
n = 1080 2594 digits Prime
b = 253
n = 15 37 digits Jun 2026 Prime
n = 205 493 digits Jun 2026 Prime
n = 245 589 digits Jun 2026 Prime
n = 1007 2420 digits Prime
n = 1217 2925 digits Prime
b = 254
n = 8 20 digits Jun 2026 Prime
n = 19 46 digits Jun 2026 Prime
n = 49 118 digits Jun 2026 Prime
n = 62 150 digits Jun 2026 Prime
n = 83 200 digits Jun 2026 Prime
n = 209 503 digits Jun 2026 Prime
n = 248 597 digits Jun 2026 Prime
n = 281 676 digits Prime
n = 2015 4846 digits PRP
n = 4417 10623 digits PRP
b = 255
n = 3 8 digits Jun 2026 Prime
n = 11 27 digits Jun 2026 Prime
n = 37 90 digits Jun 2026 Prime
n = 311 749 digits Prime
n = 1783 4291 digits PRP
b = 256
n = 6 15 digits Jun 2026 Prime
n = 8 20 digits Jun 2026 Prime
n = 17 41 digits Jun 2026 Prime
n = 21 51 digits Jun 2026 Prime
n = 62 150 digits Jun 2026 Prime
n = 133 321 digits Jun 2026 Prime
n = 312 752 digits Prime
n = 643 1549 digits Prime
b = 257
n = 14 34 digits Jun 2026 Prime
n = 25 61 digits Jun 2026 Prime
n = 41 99 digits Jun 2026 Prime
n = 2413 5816 digits PRP
n = 3814 9192 digits PRP
b = 258
n = 3 8 digits Jun 2026 Prime
n = 4 10 digits Jun 2026 Prime
n = 8 20 digits Jun 2026 Prime
n = 29 70 digits Jun 2026 Prime
n = 33 80 digits Jun 2026 Prime
n = 168 406 digits Jun 2026 Prime
n = 379 915 digits Prime
n = 399 963 digits Prime
n = 1497 3611 digits PRP
b = 259
n = 2 5 digits Jun 2026 Prime
n = 4 10 digits Jun 2026 Prime
n = 7 17 digits Jun 2026 Prime
n = 705 1702 digits Prime
n = 4275 10317 digits PRP
b = 260
n = 2 5 digits Jun 2026 Prime
n = 85 206 digits Jun 2026 Prime
n = 137 331 digits Jun 2026 Prime
n = 154 372 digits Jun 2026 Prime
n = 320 773 digits Prime
n = 666 1609 digits Prime
n = 2876 6946 digits PRP
n = 3404 8221 digits PRP
b = 261
n = 3 8 digits Jun 2026 Prime
n = 6 15 digits Jun 2026 Prime
n = 15 37 digits Jun 2026 Prime
n = 51 124 digits Jun 2026 Prime
n = 65 158 digits Jun 2026 Prime
n = 1053 2545 digits Prime
n = 1086 2625 digits Prime
n = 1225 2961 digits Prime
n = 1864 4505 digits PRP
b = 262
n = 5 13 digits Jun 2026 Prime
n = 354 857 digits Prime
b = 263
n = 20 49 digits Jun 2026 Prime
n = 27 66 digits Jun 2026 Prime
n = 40 97 digits Jun 2026 Prime
n = 137 332 digits Jun 2026 Prime
n = 140 339 digits Jun 2026 Prime
n = 327 792 digits Prime
n = 2683 6493 digits PRP
b = 264
n = 2 5 digits Jun 2026 Prime
n = 52 126 digits Jun 2026 Prime
n = 252 611 digits Jun 2026 Prime
n = 272 659 digits Prime
n = 1583 3834 digits PRP
n = 2267 5490 digits PRP
b = 265
n = 2 5 digits Jun 2026 Prime
n = 31 76 digits Jun 2026 Prime
n = 62 151 digits Jun 2026 Prime
n = 84 204 digits Jun 2026 Prime
n = 90 219 digits Jun 2026 Prime
n = 164 398 digits Jun 2026 Prime
n = 322 781 digits Prime
n = 460 1115 digits Prime
n = 734 1779 digits Prime
n = 1114 2700 digits Prime
b = 266
n = 2 5 digits Jun 2026 Prime
n = 6 15 digits Jun 2026 Prime
n = 12 30 digits Jun 2026 Prime
n = 84 204 digits Jun 2026 Prime
n = 297 721 digits Prime
n = 457 1109 digits Prime
b = 267
n = 10 25 digits Jun 2026 Prime
n = 140 340 digits Jun 2026 Prime
n = 172 418 digits Jun 2026 Prime
b = 268
n = 5 13 digits Jun 2026 Prime
n = 9 22 digits Jun 2026 Prime
n = 35 85 digits Jun 2026 Prime
n = 80 195 digits Jun 2026 Prime
n = 215 523 digits Jun 2026 Prime
n = 220 535 digits Jun 2026 Prime
b = 269
n = 2 5 digits Jun 2026 Prime
n = 3 8 digits Jun 2026 Prime
n = 12 30 digits Jun 2026 Prime
n = 20 49 digits Jun 2026 Prime
n = 159 387 digits Jun 2026 Prime
n = 1351 3283 digits PRP
n = 1429 3473 digits Prime
b = 270
n = 7 18 digits Jun 2026 Prime
n = 19 47 digits Jun 2026 Prime
n = 1126 2738 digits Prime
b = 271
n = 22 54 digits Jun 2026 Prime
n = 148 361 digits Jun 2026 Prime
n = 2213 5385 digits PRP
n = 3731 9078 digits PRP
b = 272
n = 4 10 digits Jun 2026 Prime
n = 26 64 digits Jun 2026 Prime
n = 206 502 digits Jun 2026 Prime
n = 317 772 digits Prime
n = 628 1529 digits Prime
b = 273
n = 43 105 digits Jun 2026 Prime
n = 55 134 digits Jun 2026 Prime
n = 409 997 digits Prime
n = 548 1336 digits Prime
n = 1265 3082 digits Prime
b = 274
n = 3 8 digits Jun 2026 Prime
n = 4 10 digits Jun 2026 Prime
n = 17 42 digits Jun 2026 Prime
n = 19 47 digits Jun 2026 Prime
n = 20 49 digits Jun 2026 Prime
n = 29 71 digits Jun 2026 Prime
n = 90 220 digits Jun 2026 Prime
n = 192 469 digits Jun 2026 Prime
n = 329 803 digits Prime
n = 420 1024 digits Prime
n = 1052 2565 digits Prime
n = 1096 2672 digits Prime
b = 275
n = 8 20 digits Jun 2026 Prime
n = 174 425 digits Jun 2026 Prime
n = 382 932 digits Prime
n = 507 1237 digits Prime
n = 541 1320 digits Prime
n = 2850 6953 digits PRP
n = 3041 7419 digits PRP
b = 276
n = 3 8 digits Jun 2026 Prime
n = 9 22 digits Jun 2026 Prime
n = 13 32 digits Jun 2026 Prime
n = 41 101 digits Jun 2026 Prime
n = 228 557 digits Jun 2026 Prime
n = 693 1692 digits Prime
n = 991 2419 digits Prime
b = 277
n = 10 25 digits Jun 2026 Prime
n = 36 88 digits Jun 2026 Prime
n = 114 279 digits Jun 2026 Prime
n = 641 1566 digits Prime
n = 4541 11092 digits PRP
b = 278
n = 12 30 digits Jun 2026 Prime
n = 16 40 digits Jun 2026 Prime
n = 528 1291 digits Prime
n = 1248 3051 digits Prime
n = 4685 11451 digits PRP
b = 279
n = 4 10 digits Jun 2026 Prime
n = 8 20 digits Jun 2026 Prime
n = 9 23 digits Jun 2026 Prime
n = 15 37 digits Jun 2026 Prime
n = 141 345 digits Jun 2026 Prime
n = 251 614 digits Jun 2026 Prime
n = 1600 3913 digits PRP
n = 2408 5890 digits PRP
b = 280
n = 4 10 digits Jun 2026 Prime
n = 16 40 digits Jun 2026 Prime
n = 30 74 digits Jun 2026 Prime
n = 98 240 digits Jun 2026 Prime
n = 134 328 digits Jun 2026 Prime
n = 175 429 digits Jun 2026 Prime
n = 929 2274 digits Prime
b = 281
n = 5 13 digits Jun 2026 Prime
n = 12 30 digits Jun 2026 Prime
n = 49 120 digits Jun 2026 Prime
n = 57 140 digits Jun 2026 Prime
n = 232 569 digits Jun 2026 Prime
n = 341 836 digits Prime
n = 625 1531 digits Prime
n = 818 2004 digits Prime
n = 1638 4011 digits Prime
b = 282
n = 2 5 digits Jun 2026 Prime
n = 4 10 digits Jun 2026 Prime
n = 6 15 digits Jun 2026 Prime
n = 14 35 digits Jun 2026 Prime
n = 20 50 digits Jun 2026 Prime
n = 41 101 digits Jun 2026 Prime
n = 121 297 digits Jun 2026 Prime
n = 465 1140 digits Prime
n = 1822 4465 digits PRP
b = 283
n = 5 13 digits Jun 2026 Prime
n = 9 23 digits Jun 2026 Prime
n = 120 295 digits Jun 2026 Prime
n = 121 297 digits Jun 2026 Prime
n = 151 371 digits Jun 2026 Prime
n = 209 513 digits Jun 2026 Prime
n = 873 2141 digits Prime
n = 2775 6804 digits PRP
b = 284
n = 10 25 digits Jun 2026 Prime
n = 14 35 digits Jun 2026 Prime
n = 29 72 digits Jun 2026 Prime
n = 829 2034 digits Prime
n = 949 2329 digits Prime
n = 989 2427 digits Prime
n = 1363 3344 digits PRP
n = 2016 4946 digits PRP
b = 285
n = 5 13 digits Jun 2026 Prime
n = 64 158 digits Jun 2026 Prime
n = 146 359 digits Jun 2026 Prime
n = 232 570 digits Jun 2026 Prime
n = 284 698 digits Jun 2026 Prime
n = 1054 2588 digits Prime
n = 3354 8234 digits PRP
n = 4326 10620 digits PRP
n = 4327 10623 digits PRP
b = 286
n = 2 5 digits Jun 2026 Prime
n = 5 13 digits Jun 2026 Prime
n = 13 32 digits Jun 2026 Prime
n = 14 35 digits Jun 2026 Prime
n = 23 57 digits Jun 2026 Prime
n = 33 82 digits Jun 2026 Prime
n = 57 141 digits Jun 2026 Prime
n = 104 256 digits Jun 2026 Prime
b = 287
n = 6 15 digits Jun 2026 Prime
n = 137 337 digits Jun 2026 Prime
n = 622 1529 digits Prime
b = 288
n = 3 8 digits Jun 2026 Prime
n = 99 244 digits Jun 2026 Prime
n = 149 367 digits Jun 2026 Prime
b = 289
n = 2 5 digits Jun 2026 Prime
n = 3 8 digits Jun 2026 Prime
n = 12 30 digits Jun 2026 Prime
n = 41 101 digits Jun 2026 Prime
n = 47 116 digits Jun 2026 Prime
n = 115 284 digits Jun 2026 Prime
n = 136 335 digits Jun 2026 Prime
n = 195 480 digits Jun 2026 Prime
n = 286 704 digits Jun 2026 Prime
n = 336 827 digits Prime
n = 657 1617 digits Prime
n = 1352 3328 digits Prime
n = 1827 4497 digits PRP
b = 290
n = 75 185 digits Jun 2026 Prime
n = 1041 2564 digits Prime
n = 1079 2657 digits Prime
n = 2923 7198 digits PRP
b = 291
n = 2 5 digits Jun 2026 Prime
n = 5 13 digits Jun 2026 Prime
n = 10 25 digits Jun 2026 Prime
n = 23 57 digits Jun 2026 Prime
n = 50 124 digits Jun 2026 Prime
n = 350 863 digits Prime
n = 360 888 digits Prime
n = 415 1023 digits Prime
n = 758 1868 digits Prime
n = 4453 10972 digits PRP
b = 292
n = 505 1246 digits Prime
n = 696 1716 digits Prime
n = 1398 3447 digits Prime
b = 293
n = 4 10 digits Jun 2026 Prime
n = 12 30 digits Jun 2026 Prime
n = 15 38 digits Jun 2026 Prime
n = 24 60 digits Jun 2026 Prime
n = 143 353 digits Jun 2026 Prime
n = 431 1064 digits Prime
b = 294
n = 4 10 digits Jun 2026 Prime
n = 7 18 digits Jun 2026 Prime
n = 10 25 digits Jun 2026 Prime
n = 14 35 digits Jun 2026 Prime
n = 57 141 digits Jun 2026 Prime
n = 130 321 digits Jun 2026 Prime
n = 180 445 digits Jun 2026 Prime
n = 415 1025 digits Prime
n = 1054 2602 digits Prime
n = 1118 2760 digits Prime
n = 1157 2856 digits Prime
b = 295
n = 2 5 digits Jun 2026 Prime
n = 4 10 digits Jun 2026 Prime
n = 64 159 digits Jun 2026 Prime
n = 138 341 digits Jun 2026 Prime
n = 586 1448 digits Prime
n = 1417 3500 digits Prime
n = 1756 4338 digits PRP
n = 1814 4481 digits PRP
n = 2496 6165 digits PRP
b = 296
n = 3 8 digits Jun 2026 Prime
n = 10 25 digits Jun 2026 Prime
n = 19 47 digits Jun 2026 Prime
n = 24 60 digits Jun 2026 Prime
n = 42 104 digits Jun 2026 Prime
n = 871 2153 digits Prime
n = 1218 3011 digits Prime
n = 1979 4891 digits PRP
n = 3164 7820 digits PRP
n = 4912 12139 digits PRP
b = 297
n = 2 5 digits Jun 2026 Prime
n = 9 23 digits Jun 2026 Prime
n = 80 198 digits Jun 2026 Prime
b = 298
n = 4 10 digits Jun 2026 Prime
n = 12 30 digits Jun 2026 Prime
n = 952 2356 digits Prime
n = 2591 6411 digits PRP
n = 2599 6431 digits PRP
n = 2677 6624 digits PRP
b = 299
n = 2 5 digits Jun 2026 Prime
n = 4 10 digits Jun 2026 Prime
n = 26 65 digits Jun 2026 Prime
n = 52 129 digits Jun 2026 Prime
n = 83 206 digits Jun 2026 Prime
n = 4964 12290 digits PRP
b = 300
n = 1433 3550 digits PRP
n = 2062 5108 digits PRP
n = 2943 7291 digits PRP
b = 301
n = 306 759 digits Prime
n = 1509 3741 digits PRP
n = 2774 6876 digits PRP
n = 4326 10723 digits PRP
n = 4393 10889 digits PRP
b = 302
n = 514 1275 digits Prime
n = 846 2099 digits Prime
n = 978 2426 digits Prime
b = 303
n = 4147 10291 digits PRP
b = 304
n = 461 1145 digits Prime
n = 643 1597 digits Prime
n = 877 2178 digits Prime
b = 305
n = 340 845 digits Prime
b = 306
n = 494 1228 digits Prime
n = 916 2277 digits Prime
n = 1534 3814 digits PRP
n = 4108 10212 digits PRP
b = 307
n = 1798 4472 digits PRP
b = 308
n = 2683 6677 digits PRP
b = 309
n = 1281 3190 digits Prime
n = 1483 3693 digits PRP
n = 2463 6133 digits PRP
b = 310
n = 747 1862 digits Prime
n = 784 1954 digits Prime
n = 817 2036 digits Prime
n = 909 2265 digits Prime
n = 1492 3718 digits PRP
n = 2794 6961 digits PRP
n = 3156 7863 digits PRP
b = 311
n = 3248 8097 digits PRP
b = 312
n = 898 2240 digits Prime
b = 313
n = 3343 8343 digits PRP
b = 314
n = 970 2423 digits Prime
b = 315
n = 326 815 digits Prime
b = 316
n = 508 1270 digits Prime
n = 936 2340 digits Prime
b = 317
n = 452 1131 digits Prime
b = 318
n = 552 1382 digits Prime
n = 2139 5353 digits PRP
n = 2616 6547 digits PRP
n = 4656 11652 digits PRP
b = 319
n = 458 1147 digits Prime
n = 900 2254 digits Prime
n = 1699 4254 digits PRP
b = 320
n = 445 1115 digits Prime
b = 321
n = 365 915 digits Prime
n = 385 966 digits Prime
n = 526 1319 digits Prime
n = 859 2154 digits Prime
n = 1049 2630 digits Prime
n = 1927 4831 digits PRP
b = 322
n = 712 1786 digits Prime
b = 323
n = 1233 3094 digits Prime
b = 324
n = 367 922 digits Prime
n = 3630 9114 digits PRP
b = 325
n = 1317 3309 digits PRP
n = 4231 10628 digits PRP
b = 326
n = 867 2179 digits Prime
b = 327
n = 3540 8902 digits PRP
b = 328
n = 1088 2738 digits Prime
n = 1688 4247 digits PRP
b = 329
n = 419 1055 digits Prime
n = 476 1199 digits Prime
n = 510 1284 digits Prime
n = 3785 9528 digits PRP
b = 331
n = 587 1480 digits Prime
n = 920 2319 digits Prime
n = 2438 6144 digits PRP
b = 332
n = 1465 3694 digits PRP
b = 334
n = 366 924 digits Prime
n = 461 1164 digits Prime
n = 793 2002 digits Prime
n = 3668 9258 digits PRP
n = 3761 9492 digits PRP
b = 335
n = 1280 3233 digits PRP
n = 1625 4104 digits Prime
b = 336
n = 626 1582 digits Prime
n = 639 1615 digits Prime
n = 2522 6372 digits PRP
b = 337
n = 1650 4171 digits PRP
n = 3684 9312 digits PRP
b = 743
n = 14096 40470 digits May 2018 PRP Karsten Bonath