Known Dual Williams (probable) primes inclusive all small n's for b < 1000
Expression: b^n-(b-1)
b = 3
n = 2 2 digits Prime
n = 4 2 digits Prime
n = 5 3 digits Prime
n = 6 3 digits Prime
n = 9 5 digits Prime
n = 22 11 digits Prime
n = 37 18 digits Prime
n = 41 20 digits Prime
n = 90 43 digits Prime
n = 102 49 digits Prime
n = 105 51 digits Prime
n = 317 152 digits Prime
n = 520 249 digits Prime
n = 541 259 digits Prime
n = 561 268 digits Prime
n = 648 310 digits Prime
n = 780 373 digits Prime
n = 786 376 digits Prime
n = 957 457 digits Prime
n = 1353 646 digits Prime
n = 2224 1062 digits Prime
n = 2521 1203 digits Prime
n = 6184 2951 digits Prime
n = 7989 3812 digits Prime
n = 8890 4242 digits Prime
n = 19217 9169 digits Prime
n = 20746 9899 digits Prime
n = 31722 15136 digits Oct 2002 PRP Henri Lifchitz
n = 37056 17681 digits Oct 2004 PRP Henri Lifchitz
n = 69581 33199 digits Jan 2005 PRP Henri Lifchitz
n = 195430 93244 digits Feb 2007 PRP Theodore Burton
n = 225922 107793 digits Oct 2013 PRP Lelio R Paula
n = 506233 241535 digits Nov 2013 PRP Robert Price
n = 761457 363308 digits Jul 2015 PRP Ryan Propper
n = 1180181 563090 digits May 2020 PRP Jorge Coveiro
b = 4
n = 2 2 digits Jun 2026 Prime
n = 3 2 digits Jun 2026 Prime
n = 5 4 digits Prime
n = 6 4 digits Prime
n = 7 5 digits Prime
n = 10 7 digits Prime
n = 11 7 digits Prime
n = 12 8 digits Prime
n = 47 29 digits Prime
n = 58 35 digits Prime
n = 61 37 digits Prime
n = 75 46 digits Prime
n = 87 53 digits Prime
n = 133 81 digits Prime
n = 168 102 digits Prime
n = 226 137 digits Prime
n = 347 209 digits Prime
n = 425 256 digits Prime
n = 868 523 digits Prime
n = 1977 1191 digits Prime
n = 2815 1695 digits Prime
n = 3378 2034 digits Prime
n = 4385 2641 digits Prime
n = 5286 3183 digits Prime
n = 7057 4249 digits Prime
n = 7200 4335 digits Prime
n = 8230 4955 digits Prime
n = 8340 5022 digits Prime
n = 13175 7933 digits Prime
n = 17226 10372 digits Aug 2001 Prime Paul Underwood
n = 18276 11004 digits Aug 2001 PRP Paul Underwood
n = 25237 15195 digits Aug 2001 PRP Paul Underwood
n = 33211 19996 digits Aug 2001 Prime Paul Underwood
n = 58463 35199 digits Jul 2002 PRP Markus Frind & P. Underwood
n = 59662 35921 digits Jul 2002 PRP Markus Frind & P. Underwood
n = 94555 56928 digits Nov 2002 PRP Markus Frind & P. Underwood
n = 120502 72550 digits Jul 2002 PRP Markus Frind & P. Underwood
n = 177473 106850 digits Aug 2002 PRP Markus Frind & P. Underwood
n = 197017 118617 digits Sep 2002 PRP Markus Frind & P. Underwood
n = 351097 211382 digits Mar 2012 PRP Paul Bourdelais
n = 375370 225996 digits Mar 2012 PRP Paul Bourdelais
n = 563190 339075 digits Jun 2019 PRP Paul Bourdelais
n = 673872 405712 digits Jul 2019 PRP Paul Bourdelais
n = 881002 530417 digits Apr 2020 PRP Paul Bourdelais
n = 1043375 628175 digits May 2020 PRP Paul Bourdelais
b = 5
n = 5 4 digits Prime
n = 7 5 digits Prime
n = 15 11 digits Prime
n = 47 33 digits Prime
n = 81 57 digits Prime
n = 115 81 digits Prime
n = 267 187 digits Prime
n = 285 200 digits Prime
n = 7641 5341 digits Prime
n = 19089 13343 digits Nov 2005 PRP Wojciech Florek
n = 25831 18056 digits Nov 2005 PRP Wojciech Florek
n = 32115 22448 digits Nov 2005 PRP Wojciech Florek
n = 59811 41807 digits Nov 2005 PRP Theodore Burton
n = 70155 49037 digits Nov 2005 PRP Theodore Burton
n = 178715 124917 digits Jul 2021 PRP Tyler NeSmith
b = 6
n = 2 2 digits Jun 2026 Prime
n = 3 3 digits Jun 2026 Prime
n = 4 4 digits Jun 2026 Prime
n = 29 23 digits Prime
n = 31 25 digits Prime
n = 34 27 digits Prime
n = 53 42 digits Prime
n = 65 51 digits Prime
n = 94 74 digits Prime
n = 202 158 digits Prime
n = 288 225 digits Prime
n = 415 323 digits Prime
n = 457 356 digits Prime
n = 483 376 digits Prime
n = 703 548 digits Prime
n = 762 593 digits Prime
n = 1285 1000 digits Prime
n = 1464 1140 digits Prime
n = 2094 1630 digits Prime
n = 3384 2634 digits Prime
n = 9335 7265 digits Prime
n = 15955 12416 digits Nov 2002 PRP Henri Lifchitz
n = 18910 14715 digits Nov 2002 PRP Henri Lifchitz
n = 73119 56898 digits Oct 2012 PRP Lelio R Paula
n = 125418 97595 digits Nov 2014 PRP Lelio R Paula
n = 143273 111489 digits Jan 2021 PRP Paul Bourdelais
n = 584279 454658 digits Feb 2021 PRP Paul Bourdelais
b = 7
n = 2 2 digits Jun 2026 Prime
n = 3 3 digits Jun 2026 Prime
n = 6 6 digits Jun 2026 Prime
n = 9 8 digits Prime
n = 21 18 digits Prime
n = 25 22 digits Prime
n = 33 28 digits Prime
n = 49 42 digits Prime
n = 54 46 digits Prime
n = 133 113 digits Prime
n = 245 208 digits Prime
n = 255 216 digits Prime
n = 318 269 digits Prime
n = 1023 865 digits Prime
n = 1486 1256 digits Prime
n = 3334 2818 digits Prime
n = 6821 5765 digits Prime
n = 8555 7230 digits PRP
n = 11605 9808 digits PRP
n = 42502 35919 digits Nov 2005 PRP Theodore Burton
n = 44409 37530 digits Nov 2005 PRP Theodore Burton
n = 90291 76305 digits Nov 2005 PRP Theodore Burton
n = 92511 78181 digits Nov 2005 PRP Theodore Burton
n = 140303 118570 digits Nov 2014 PRP Robert Price
b = 8
n = 13 12 digits Prime
n = 661 597 digits Prime
n = 773 699 digits Prime
n = 833 753 digits Prime
n = 4273 3859 digits Prime
n = 40613 36678 digits Feb 2008 PRP Gary Barnes
b = 9
n = 2 2 digits Jun 2026 Prime
n = 4 4 digits Jun 2026 Prime
n = 7 7 digits Jun 2026 Prime
n = 10 10 digits Prime
n = 11 11 digits Prime
n = 31 30 digits Prime
n = 127 122 digits Prime
n = 136 130 digits Prime
n = 215 206 digits Prime
n = 953 910 digits Prime
n = 1139 1087 digits Prime
n = 1799 1717 digits Prime
n = 3406 3251 digits Prime
n = 7633 7284 digits PRP
n = 13090 12492 digits Jan 2006 PRP Maksym Voznyy
n = 13171 12569 digits Jan 2006 PRP Maksym Voznyy
n = 13511 12893 digits Jan 2006 PRP Maksym Voznyy
n = 32593 31102 digits Mar 2012 PRP Lelio R Paula
b = 10
n = 3 4 digits Jun 2026 Prime
n = 5 6 digits Jun 2026 Prime
n = 7 8 digits Jun 2026 Prime
n = 33 34 digits Prime
n = 45 46 digits Prime
n = 105 106 digits Prime
n = 197 198 digits Prime
n = 199 200 digits Prime
n = 281 282 digits Prime
n = 301 302 digits Prime
n = 317 318 digits Prime
n = 1107 1108 digits Prime
n = 1657 1658 digits Prime
n = 3395 3396 digits Prime
n = 35925 35926 digits Jan 2008 PRP Jason Earls
n = 37597 37598 digits Jan 2008 PRP Jason Earls
n = 64305 64306 digits Jan 2011 PRP Alexander Gramolin
n = 80139 80140 digits Jan 2011 PRP Alexander Gramolin
n = 221631 221632 digits Feb 2011 PRP Alexander Gramolin
b = 11
n = 3 4 digits Jun 2026 Prime
n = 17 18 digits Prime
n = 23 24 digits Prime
n = 79 83 digits Prime
n = 273 285 digits Prime
n = 2185 2276 digits Prime
n = 4087 4257 digits Prime
n = 5855 6098 digits Prime
n = 17151 17861 digits Nov 2005 PRP Theodore Burton
n = 79133 82409 digits Nov 2005 PRP Theodore Burton
b = 12
n = 5 6 digits Jun 2026 Prime
n = 6 7 digits Jun 2026 Prime
n = 18 20 digits Prime
n = 33 36 digits Prime
n = 63 68 digits Prime
n = 4459 4813 digits Prime
n = 6415 6923 digits PRP
n = 6778 7315 digits PRP
n = 8763 9457 digits PRP
n = 13842 14939 digits Oct 2006 PRP Lelio R Paula
n = 23483 25343 digits Apr 2012 PRP Norbert Schneider
n = 26199 28274 digits Apr 2012 PRP Norbert Schneider
n = 49746 53685 digits Jan 2013 PRP Lelio R Paula
n = 64918 70059 digits Jan 2015 PRP Lelio R Paula
n = 102123 110210 digits Sep 2023 PRP Riley Fisher
n = 104501 112776 digits Dec 2023 PRP Riley Fisher
n = 107422 115928 digits Dec 2023 PRP Riley Fisher
n = 136450 147255 digits Dec 2024 PRP Riley Fisher
b = 13
n = 2 3 digits Jun 2026 Prime
n = 4 5 digits Jun 2026 Prime
n = 5 6 digits Jun 2026 Prime
n = 6 7 digits Jun 2026 Prime
n = 13 15 digits Prime
n = 24 27 digits Prime
n = 64 72 digits Prime
n = 133 149 digits Prime
n = 268 299 digits Prime
n = 744 829 digits Prime
n = 952 1061 digits Prime
n = 1261 1405 digits Prime
n = 5794 6455 digits Prime
n = 11833 13182 digits Nov 2005 PRP Theodore Burton
b = 14
n = 3 4 digits Jun 2026 Prime
n = 5 6 digits Jun 2026 Prime
n = 7 9 digits Jun 2026 Prime
n = 13 15 digits Jun 2026 Prime
n = 15 18 digits Prime
n = 21 25 digits Prime
n = 59 68 digits Prime
n = 63 73 digits Prime
n = 69 80 digits Prime
n = 205 235 digits Prime
n = 2319 2658 digits Prime
n = 2385 2734 digits Prime
n = 50739 58154 digits Mar 2013 PRP Lelio R Paula
b = 15
n = 2 3 digits Jun 2026 Prime
n = 3 4 digits Jun 2026 Prime
n = 28 33 digits Prime
n = 78 92 digits Prime
n = 556 654 digits Prime
n = 630 741 digits Prime
n = 1121 1319 digits Prime
n = 1465 1723 digits Prime
n = 7877 9265 digits PRP
n = 9342 10988 digits Jun 2006 PRP Wojciech Florek
n = 15042 17691 digits Jun 2006 PRP Wojciech Florek
n = 50385 59258 digits Jun 2006 PRP Wojciech Florek
b = 16
n = 2 3 digits Jun 2026 Prime
n = 4 5 digits Jun 2026 Prime
n = 19 23 digits Prime
n = 25 31 digits Prime
n = 49 60 digits Prime
n = 155 187 digits Prime
n = 2206 2657 digits Prime
n = 45821 55174 digits Mar 2011 PRP Lelio R Paula
n = 245254 295316 digits Jul 2022 PRP Stefano Morozzi
b = 17
n = 11 14 digits Jun 2026 Prime
n = 21 26 digits Prime
n = 127 157 digits Prime
n = 149 184 digits Prime
n = 469 578 digits Prime
n = 2019 2485 digits Prime
n = 13953 17169 digits Nov 2005 PRP Theodore Burton
n = 21689 26688 digits Nov 2005 PRP Theodore Burton
n = 25679 31597 digits Nov 2005 PRP Theodore Burton
n = 81417 100180 digits Nov 2005 PRP Theodore Burton
b = 18
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 = 12 16 digits Jun 2026 Prime
n = 13 17 digits Jun 2026 Prime
n = 41 52 digits Prime
n = 213 268 digits Prime
n = 232 292 digits Prime
n = 258 324 digits Prime
n = 905 1137 digits Prime
n = 928 1165 digits Prime
n = 4753 5967 digits Prime
n = 4902 6154 digits Prime
n = 16761 21040 digits Jun 2011 PRP Norbert Schneider
n = 19146 24034 digits Jun 2011 PRP Norbert Schneider
n = 70793 88865 digits Nov 2015 PRP Lelio R Paula
b = 19
n = 3 4 digits Jun 2026 Prime
n = 4 6 digits Jun 2026 Prime
n = 5 7 digits Jun 2026 Prime
n = 7 9 digits Jun 2026 Prime
n = 10 13 digits Jun 2026 Prime
n = 22 29 digits Prime
n = 52 67 digits Prime
n = 65 84 digits Prime
n = 125 160 digits Prime
n = 197 252 digits Prime
n = 267 342 digits Prime
n = 335 429 digits Prime
n = 348 446 digits Prime
n = 412 527 digits Prime
n = 1666 2131 digits Prime
n = 1705 2181 digits Prime
n = 3318 4243 digits Prime
n = 11271 14413 digits Nov 2005 PRP Theodore Burton
n = 37074 47409 digits Nov 2005 PRP Theodore Burton
n = 61980 79258 digits Dec 2005 PRP Theodore Burton
n = 69025 88266 digits Jan 2006 PRP Theodore Burton
b = 20
n = 17 23 digits Jun 2026 Prime
n = 6681 8693 digits PRP
b = 21
n = 2 3 digits Jun 2026 Prime
n = 3 4 digits Jun 2026 Prime
n = 5 7 digits Jun 2026 Prime
n = 9 12 digits Jun 2026 Prime
n = 35 47 digits Prime
n = 57 76 digits Prime
n = 78 104 digits Prime
n = 124 164 digits Prime
n = 328 434 digits Prime
n = 490 648 digits Prime
n = 645 853 digits Prime
n = 676 894 digits Prime
n = 1786 2362 digits Prime
n = 12597 16656 digits Apr 2011 PRP Norbert Schneider
n = 28713 37965 digits Mar 2012 PRP Norbert Schneider
n = 29065 38431 digits Mar 2012 PRP Norbert Schneider
b = 22
n = 2 3 digits Jun 2026 Prime
n = 3 5 digits Jun 2026 Prime
n = 35 47 digits Prime
n = 42 57 digits Prime
n = 47 64 digits Prime
n = 65 88 digits Prime
n = 71 96 digits Prime
n = 99 133 digits Prime
n = 273 367 digits Prime
n = 354 476 digits Prime
n = 837 1124 digits Prime
n = 4315 5793 digits Prime
n = 4991 6701 digits PRP
b = 23
n = 61 84 digits Prime
n = 445 606 digits Prime
n = 4381 5966 digits Prime
n = 15041 20482 digits Nov 2005 PRP Theodore Burton
n = 17569 23925 digits Nov 2005 PRP Theodore Burton
b = 24
n = 4 6 digits Jun 2026 Prime
n = 28 39 digits Prime
n = 57 79 digits Prime
n = 64 89 digits Prime
n = 184 254 digits Prime
n = 955 1319 digits Prime
n = 1045 1443 digits Prime
n = 1194 1648 digits Prime
n = 1404 1938 digits Prime
n = 4744 6548 digits PRP
n = 13792 19036 digits Apr 2011 PRP Norbert Schneider
n = 67379 92998 digits Sep 2024 PRP Mark Rodenkirch
b = 25
n = 2 3 digits Jun 2026 Prime
n = 3 5 digits Jun 2026 Prime
n = 6 9 digits Jun 2026 Prime
n = 13 19 digits Jun 2026 Prime
n = 331 463 digits Prime
n = 1860 2601 digits Prime
n = 2451 3427 digits Prime
n = 4195 5865 digits PRP
n = 6103 8532 digits PRP
n = 10960 15322 digits Sep 2006 PRP Lelio R Paula
n = 41340 57791 digits Oct 2012 PRP Lelio R Paula
n = 53341 74568 digits Aug 2014 PRP Lelio R Paula
n = 60473 84538 digits Oct 2015 PRP Lelio R Paula
n = 74007 103458 digits Nov 2016 PRP Lelio R Paula
b = 26
n = 3 5 digits Jun 2026 Prime
n = 255 361 digits Prime
n = 503 712 digits Prime
n = 735 1041 digits Prime
n = 2131 3016 digits Prime
n = 9737 13778 digits Apr 2011 PRP Norbert Schneider
n = 11907 16849 digits May 2011 PRP Norbert Schneider
b = 27
n = 9 13 digits Jun 2026 Prime
n = 10 15 digits Jun 2026 Prime
n = 19 28 digits Jun 2026 Prime
n = 39 56 digits Prime
n = 85 122 digits Prime
n = 217 311 digits Prime
n = 291 417 digits Prime
n = 8590 12296 digits Aug 2006 PRP Lelio R Paula
n = 15221 21787 digits Jul 2011 PRP Norbert Schneider
n = 29159 41738 digits Apr 2012 PRP Norbert Schneider
b = 28
n = 2 3 digits Jun 2026 Prime
n = 10 15 digits Jun 2026 Prime
n = 25 37 digits Jun 2026 Prime
n = 508 736 digits Prime
n = 712 1031 digits Prime
n = 14125 20442 digits May 2011 PRP Norbert Schneider
n = 35785 51787 digits Jan 2014 PRP Norbert Schneider
b = 29
n = 33 49 digits Prime
n = 89 131 digits Prime
n = 101 148 digits Prime
n = 2439 3567 digits Prime
n = 4605 6735 digits PRP
n = 5905 8636 digits PRP
n = 21193 30993 digits Dec 2005 PRP Theodore Burton
n = 24183 35366 digits Dec 2005 PRP Theodore Burton
b = 30
n = 7 11 digits Jun 2026 Prime
n = 13 20 digits Jun 2026 Prime
n = 31 46 digits Prime
n = 40 60 digits Prime
n = 46 68 digits Prime
n = 1024 1513 digits Prime
n = 1684 2488 digits Prime
n = 3247 4797 digits Prime
n = 12274 18131 digits May 2011 PRP Norbert Schneider
n = 14183 20951 digits May 2011 PRP Norbert Schneider
n = 18551 27403 digits Jul 2011 PRP Norbert Schneider
n = 20008 29555 digits Apr 2012 PRP Norbert Schneider
n = 22003 32502 digits Apr 2012 PRP Norbert Schneider
n = 30607 45211 digits Feb 2014 PRP Norbert Schneider
n = 47341 69929 digits Feb 2014 PRP Norbert Schneider
b = 31
n = 3 5 digits Jun 2026 Prime
n = 5 8 digits Jun 2026 Prime
n = 29 44 digits Jun 2026 Prime
n = 103 154 digits Prime
n = 106 159 digits Prime
n = 174 260 digits Prime
n = 615 918 digits Prime
n = 954 1423 digits Prime
n = 1378 2056 digits Prime
n = 5622 8385 digits PRP
n = 6258 9333 digits PRP
n = 8493 12667 digits Nov 2005 PRP Theodore Burton
n = 13639 20341 digits Dec 2005 PRP Theodore Burton
n = 14891 22208 digits Dec 2005 PRP Theodore Burton
n = 26243 39138 digits Dec 2005 PRP Theodore Burton
n = 31835 47478 digits Dec 2005 PRP Theodore Burton
n = 59713 89054 digits Feb 2007 PRP Theodore Burton
n = 78759 117459 digits Feb 2007 PRP Theodore Burton
b = 32
n = 7 11 digits Jun 2026 Prime
n = 31 47 digits Jun 2026 Prime
n = 51 77 digits Prime
n = 99 150 digits Prime
n = 547 824 digits Prime
n = 2275 3425 digits Prime
n = 11125 16745 digits Apr 2005 PRP Henri Lifchitz
n = 19859 29891 digits Jun 2005 PRP Henri Lifchitz
n = 34133 51376 digits Jan 2011 PRP Lelio R Paula
b = 33
n = 4 7 digits Jun 2026 Prime
n = 52 79 digits Prime
n = 108 164 digits Prime
n = 198 301 digits Prime
n = 201 306 digits Prime
n = 249 379 digits Prime
n = 262 398 digits Prime
n = 777 1180 digits Prime
n = 2556 3882 digits Prime
n = 12273 18637 digits May 2011 PRP Norbert Schneider
n = 41889 63610 digits Mar 2014 PRP Norbert Schneider
b = 34
n = 2 4 digits Jun 2026 Prime
n = 10 16 digits Jun 2026 Prime
n = 12 19 digits Jun 2026 Prime
n = 60 92 digits Prime
n = 220 337 digits Prime
n = 225 345 digits Prime
n = 253 388 digits Prime
n = 407 624 digits Prime
n = 427 654 digits Prime
n = 1174 1798 digits Prime
n = 3402 5211 digits Prime
n = 9148 14010 digits Apr 2011 PRP Norbert Schneider
n = 18833 28843 digits Jul 2011 PRP Norbert Schneider
b = 35
n = 3 5 digits Jun 2026 Prime
n = 5 8 digits Jun 2026 Prime
n = 21 33 digits Jun 2026 Prime
n = 37 58 digits Prime
n = 109 169 digits Prime
n = 117 181 digits Prime
n = 513 793 digits Prime
n = 873 1348 digits Prime
n = 11397 17598 digits May 2011 PRP Norbert Schneider
n = 14899 23006 digits May 2011 PRP Norbert Schneider
n = 41779 64510 digits Apr 2014 PRP Norbert Schneider
b = 36
n = 5 8 digits Jun 2026 Prime
n = 11 18 digits Jun 2026 Prime
n = 143 223 digits Prime
n = 1373 2137 digits Prime
n = 2404 3742 digits Prime
n = 7613 11849 digits Sep 2006 PRP Lelio R Paula
n = 18942 29480 digits Jul 2011 PRP Norbert Schneider
n = 31849 49567 digits Jun 2012 PRP Lelio R Paula
n = 38158 59386 digits Oct 2012 PRP Lelio R Paula
n = 64959 101096 digits Oct 2016 PRP Lelio R Paula
b = 37
n = 67 106 digits Prime
n = 95 149 digits Prime
n = 341 535 digits Prime
n = 577 905 digits Prime
n = 2651 4158 digits Prime
n = 11761 18444 digits Dec 2005 PRP Theodore Burton
b = 38
n = 5 8 digits Jun 2026 Prime
n = 429 678 digits Prime
b = 39
n = 2 4 digits Jun 2026 Prime
n = 3 5 digits Jun 2026 Prime
n = 4 7 digits Jun 2026 Prime
n = 10 16 digits Jun 2026 Prime
n = 31 50 digits Jun 2026 Prime
n = 33 53 digits Jun 2026 Prime
n = 95 152 digits Prime
n = 431 686 digits Prime
n = 640 1019 digits Prime
n = 757 1205 digits Prime
n = 1187 1889 digits Prime
n = 1197 1905 digits Prime
n = 4021 6398 digits Prime
n = 20728 32980 digits Jun 2012 PRP Norbert Schneider
n = 23425 37271 digits Jun 2012 PRP Norbert Schneider
n = 23958 38119 digits Jun 2012 PRP Norbert Schneider
n = 25881 41179 digits Jun 2012 PRP Norbert Schneider
n = 37078 58994 digits May 2014 PRP Norbert Schneider
n = 40359 64214 digits May 2014 PRP Norbert Schneider
b = 40
n = 10 17 digits Jun 2026 Prime
n = 22 36 digits Jun 2026 Prime
n = 49 79 digits Prime
n = 60 97 digits Prime
n = 153 246 digits Prime
n = 269 431 digits Prime
n = 274 439 digits Prime
n = 663 1063 digits Prime
n = 883 1415 digits Prime
n = 975 1563 digits Prime
n = 1294 2074 digits Prime
n = 2656 4256 digits Prime
n = 4906 7860 digits PRP
n = 6393 10242 digits Apr 2011 PRP Norbert Schneider
b = 41
n = 3 5 digits Jun 2026 Prime
n = 5 9 digits Jun 2026 Prime
n = 55 89 digits Prime
n = 161 260 digits Prime
n = 197 318 digits Prime
n = 1697 2737 digits Prime
n = 11991 19339 digits Feb 2007 PRP Theodore Burton
n = 32295 52085 digits Feb 2007 PRP Theodore Burton
n = 57783 93192 digits Feb 2007 PRP Theodore Burton
b = 42
n = 2 4 digits Jun 2026 Prime
n = 3 5 digits Jun 2026 Prime
n = 11 18 digits Jun 2026 Prime
n = 15 25 digits Jun 2026 Prime
n = 31 51 digits Jun 2026 Prime
n = 57 93 digits Prime
n = 339 551 digits Prime
n = 345 561 digits Prime
n = 517 840 digits Prime
n = 1917 3112 digits Prime
n = 2553 4145 digits Prime
n = 24801 40259 digits Jun 2012 PRP Norbert Schneider
n = 27291 44301 digits Jun 2012 PRP Norbert Schneider
n = 35445 57537 digits Jun 2014 PRP Norbert Schneider
n = 35723 57988 digits Jun 2014 PRP Norbert Schneider
n = 49087 79681 digits Jun 2014 PRP Norbert Schneider
n = 57867 93933 digits Aug 2018 PRP Norbert Schneider
b = 43
n = 4 7 digits Jun 2026 Prime
n = 42 69 digits Jun 2026 Prime
n = 64 105 digits Prime
n = 65 107 digits Prime
n = 1017 1662 digits Prime
n = 3390 5538 digits Prime
n = 3894 6361 digits PRP
n = 8904 14545 digits Nov 2005 PRP Theodore Burton
n = 12976 21196 digits Feb 2007 PRP Theodore Burton
n = 63177 103198 digits Feb 2007 PRP Theodore Burton
b = 44
n = 25 42 digits Jun 2026 Prime
n = 91 150 digits Prime
n = 1385 2277 digits Prime
n = 3631 5968 digits PRP
n = 9679 15907 digits Aug 2011 PRP Norbert Schneider
b = 45
n = 3 5 digits Jun 2026 Prime
n = 4 7 digits Jun 2026 Prime
n = 18 30 digits Jun 2026 Prime
n = 64 106 digits Prime
n = 424 701 digits Prime
n = 1663 2750 digits Prime
n = 4840 8002 digits PRP
n = 12999 21491 digits Sep 2011 PRP Norbert Schneider
b = 46
n = 4 7 digits Jun 2026 Prime
n = 5 9 digits Jun 2026 Prime
n = 9 15 digits Jun 2026 Prime
n = 15 25 digits Jun 2026 Prime
n = 72 120 digits Prime
n = 168 280 digits Prime
n = 216 360 digits Prime
n = 222 370 digits Prime
n = 3312 5508 digits Prime
n = 3423 5692 digits PRP
n = 6469 10757 digits Aug 2011 PRP Norbert Schneider
n = 6827 11352 digits Aug 2011 PRP Norbert Schneider
n = 8784 14606 digits Aug 2011 PRP Norbert Schneider
n = 36238 60256 digits Jul 2014 PRP Norbert Schneider
b = 47
n = 5 9 digits Jun 2026 Prime
n = 13 22 digits Jun 2026 Prime
n = 53 89 digits Prime
n = 115 193 digits Prime
n = 899 1504 digits Prime
n = 2287 3825 digits Prime
n = 47667 79704 digits Feb 2007 PRP Theodore Burton
b = 48
n = 5 9 digits Jun 2026 Prime
n = 37 63 digits Jun 2026 Prime
n = 162 273 digits Prime
n = 281 473 digits Prime
n = 5733 9639 digits Feb 2025 PRP Vincent Gautier
n = 12137 20406 digits Sep 2011 PRP Norbert Schneider
n = 19152 32200 digits Jan 2012 PRP Norbert Schneider
n = 52626 88478 digits Aug 2018 PRP Norbert Schneider
b = 49
n = 24 41 digits Jun 2026 Prime
n = 36 61 digits Jun 2026 Prime
n = 1230 2079 digits Prime
n = 1665 2815 digits Prime
n = 1765 2984 digits Prime
n = 2957 4998 digits Prime
n = 9059 15312 digits Sep 2006 PRP Lelio R Paula
b = 50
n = 3 6 digits Jun 2026 Prime
n = 7 12 digits Jun 2026 Prime
n = 23 40 digits Jun 2026 Prime
n = 105 179 digits Prime
n = 159 271 digits Prime
n = 175 298 digits Prime
n = 221 376 digits Prime
n = 317 539 digits Prime
n = 577 981 digits Prime
n = 1233 2095 digits Prime
n = 1523 2588 digits Prime
n = 1917 3257 digits Prime
n = 2097 3563 digits Prime
n = 3951 6713 digits PRP
n = 6165 10475 digits Aug 2011 PRP Norbert Schneider
n = 11951 20305 digits Sep 2011 PRP Norbert Schneider
n = 31847 54108 digits Jul 2014 PRP Norbert Schneider
n = 31891 54182 digits Jul 2014 PRP Norbert Schneider
n = 56543 96065 digits Sep 2018 PRP Norbert Schneider
b = 51
n = 2 4 digits Jun 2026 Prime
n = 7429 12686 digits Aug 2011 PRP Norbert Schneider
b = 52
n = 3 6 digits Jun 2026 Prime
n = 15 26 digits Jun 2026 Prime
n = 25 43 digits Jun 2026 Prime
n = 41 71 digits Jun 2026 Prime
n = 106 182 digits Prime
n = 318 546 digits Prime
n = 431 740 digits Prime
n = 655 1124 digits Prime
n = 2071 3554 digits Prime
n = 30577 52471 digits Aug 2014 PRP Norbert Schneider
n = 30967 53140 digits Aug 2014 PRP Norbert Schneider
n = 51285 88006 digits Sep 2018 PRP Norbert Schneider
b = 53
n = 173 299 digits Prime
n = 2153 3713 digits Prime
n = 11793 20335 digits Feb 2007 PRP Theodore Burton
b = 54
n = 3 6 digits Jun 2026 Prime
n = 6 11 digits Jun 2026 Prime
n = 547 948 digits Prime
n = 591 1024 digits Prime
n = 1609 2788 digits Prime
n = 4599 7968 digits PRP
n = 8107 14045 digits Aug 2011 PRP Norbert Schneider
n = 48897 84709 digits Aug 2014 PRP Norbert Schneider
b = 55
n = 2 4 digits Jun 2026 Prime
n = 541 942 digits Prime
n = 900 1567 digits Prime
n = 2483 4322 digits Prime
n = 4311 7503 digits PRP
n = 5856 10192 digits Aug 2011 PRP Norbert Schneider
n = 6665 11600 digits Aug 2011 PRP Norbert Schneider
n = 7493 13041 digits Aug 2011 PRP Norbert Schneider
n = 27370 47634 digits Aug 2012 PRP Norbert Schneider
n = 36683 63842 digits Aug 2014 PRP Norbert Schneider
b = 56
n = 9 16 digits Jun 2026 Prime
n = 23 41 digits Jun 2026 Prime
n = 105 184 digits Prime
n = 115 202 digits Prime
n = 439 768 digits Prime
n = 1389 2429 digits Prime
n = 11063 19341 digits Oct 2011 PRP Norbert Schneider
b = 57
n = 3 6 digits Jun 2026 Prime
n = 5 9 digits Jun 2026 Prime
n = 51 90 digits Jun 2026 Prime
n = 61 108 digits Prime
n = 3514 6171 digits PRP
n = 12354 21693 digits Oct 2011 PRP Norbert Schneider
n = 13402 23533 digits Oct 2011 PRP Norbert Schneider
n = 25311 44443 digits Aug 2012 PRP Norbert Schneider
b = 58
n = 2 4 digits Jun 2026 Prime
n = 16 29 digits Jun 2026 Prime
n = 136 240 digits Prime
n = 37378 65914 digits Sep 2014 PRP Norbert Schneider
b = 59
n = 117 208 digits Prime
n = 21351 37810 digits Feb 2007 PRP Theodore Burton
b = 60
n = 2 4 digits Jun 2026 Prime
n = 4 8 digits Jun 2026 Prime
n = 9 17 digits Jun 2026 Prime
n = 12 22 digits Jun 2026 Prime
n = 17 31 digits Jun 2026 Prime
n = 415 738 digits Prime
n = 496 882 digits Prime
n = 48847 86858 digits Oct 2014 PRP Norbert Schneider
b = 61
n = 5 9 digits Jun 2026 Prime
n = 24 43 digits Jun 2026 Prime
n = 42 75 digits Jun 2026 Prime
n = 81 145 digits Prime
n = 112 200 digits Prime
n = 2592 4628 digits Prime
n = 7609 13585 digits Nov 2005 PRP Theodore Burton
n = 13054 23306 digits Feb 2007 PRP Theodore Burton
n = 23088 41220 digits Feb 2007 PRP Theodore Burton
n = 46427 82888 digits Oct 2014 PRP Norbert Schneider
b = 62
n = 3 6 digits Jun 2026 Prime
n = 41 74 digits Jun 2026 Prime
n = 49 88 digits Jun 2026 Prime
n = 61 110 digits Jun 2026 Prime
n = 63 113 digits Prime
n = 235 422 digits Prime
b = 63
n = 2 4 digits Jun 2026 Prime
n = 4 8 digits Jun 2026 Prime
n = 30 54 digits Jun 2026 Prime
n = 36 65 digits Jun 2026 Prime
n = 186 335 digits Prime
n = 393 708 digits Prime
n = 4168 7500 digits PRP
b = 64
n = 4 8 digits Jun 2026 Prime
n = 17 31 digits Jun 2026 Prime
n = 141 255 digits Prime
n = 492 889 digits Prime
n = 1432 2587 digits Prime
n = 1554 2807 digits Prime
n = 3157 5703 digits Prime
n = 16096 29073 digits Feb 2010 PRP Lelio R Paula
b = 65
n = 19 35 digits Jun 2026 Prime
n = 9889 17928 digits Oct 2011 PRP Norbert Schneider
n = 51083 92610 digits Nov 2014 PRP Norbert Schneider
n = 56567 102552 digits Nov 2014 PRP Norbert Schneider
b = 66
n = 31 57 digits Jun 2026 Prime
n = 58 106 digits Jun 2026 Prime
n = 75 137 digits Prime
n = 219 399 digits Prime
n = 360 656 digits Prime
n = 741 1349 digits Prime
n = 3845 6997 digits PRP
n = 8418 15317 digits Oct 2011 PRP Norbert Schneider
n = 22779 41448 digits Sep 2012 PRP Norbert Schneider
n = 47023 85561 digits Nov 2014 PRP Norbert Schneider
n = 49037 89225 digits Nov 2014 PRP Norbert Schneider
b = 67
n = 2 4 digits Jun 2026 Prime
n = 65 119 digits Jun 2026 Prime
n = 345 630 digits Prime
n = 373 682 digits Prime
n = 2073 3786 digits Prime
n = 4158 7593 digits PRP
n = 4839 8837 digits PRP
n = 39701 72497 digits Nov 2014 PRP Norbert Schneider
b = 68
n = 29 54 digits Jun 2026 Prime
n = 177 325 digits Prime
n = 233 427 digits Prime
n = 313 574 digits Prime
n = 4965 9099 digits PRP
b = 69
n = 4 8 digits Jun 2026 Prime
n = 17 32 digits Jun 2026 Prime
n = 77 142 digits Prime
n = 79 146 digits Prime
n = 84 155 digits Prime
n = 279 514 digits Prime
n = 669 1231 digits Prime
n = 724 1332 digits Prime
n = 863 1587 digits Prime
n = 9551 17563 digits Oct 2011 PRP Norbert Schneider
b = 70
n = 2 4 digits Jun 2026 Prime
n = 15 28 digits Jun 2026 Prime
n = 570 1052 digits Prime
n = 1021 1884 digits Prime
n = 1275 2353 digits Prime
n = 1866 3443 digits Prime
n = 3305 6099 digits PRP
n = 4077 7523 digits PRP
n = 18556 34238 digits May 2012 PRP Norbert Schneider
n = 29836 55051 digits Oct 2012 PRP Norbert Schneider
b = 71
n = 3019 5589 digits Prime
n = 19719 36505 digits May 2012 PRP Norbert Schneider
b = 72
n = 2 4 digits Jun 2026 Prime
n = 5 10 digits Jun 2026 Prime
n = 1054 1958 digits Prime
n = 3322 6171 digits PRP
b = 73
n = 21 40 digits Jun 2026 Prime
n = 49 92 digits Jun 2026 Prime
n = 1744 3250 digits Prime
n = 2901 5406 digits Prime
n = 6918 12891 digits Nov 2005 PRP Theodore Burton
n = 7320 13640 digits Nov 2005 PRP Theodore Burton
b = 74
n = 51 96 digits Jun 2026 Prime
n = 623 1165 digits Prime
n = 7463 13951 digits Nov 2011 PRP Norbert Schneider
b = 75
n = 3 6 digits Jun 2026 Prime
n = 4 8 digits Jun 2026 Prime
n = 30 57 digits Jun 2026 Prime
n = 46 87 digits Jun 2026 Prime
n = 76 143 digits Prime
n = 156 293 digits Prime
n = 7006 13137 digits Nov 2011 PRP Norbert Schneider
n = 12641 23703 digits Dec 2011 PRP Norbert Schneider
n = 17465 32748 digits Jun 2012 PRP Norbert Schneider
n = 55914 104843 digits Jan 2015 PRP Norbert Schneider
b = 76
n = 2 4 digits Jun 2026 Prime
n = 33 63 digits Jun 2026 Prime
n = 276 520 digits Prime
n = 1348 2536 digits Prime
n = 1955 3677 digits Prime
n = 1983 3730 digits Prime
n = 3051 5739 digits PRP
n = 3293 6194 digits PRP
n = 7206 13554 digits Nov 2011 PRP Norbert Schneider
n = 8595 16166 digits Nov 2011 PRP Norbert Schneider
n = 13043 24532 digits Dec 2011 PRP Norbert Schneider
n = 18282 34386 digits Jun 2012 PRP Norbert Schneider
n = 21117 39718 digits Nov 2012 PRP Norbert Schneider
n = 27112 50993 digits Nov 2012 PRP Norbert Schneider
n = 53332 100308 digits Feb 2015 PRP Norbert Schneider
b = 77
n = 3 6 digits Jun 2026 Prime
n = 11 21 digits Jun 2026 Prime
n = 17 33 digits Jun 2026 Prime
n = 39 74 digits Jun 2026 Prime
n = 8473 15985 digits Nov 2011 PRP Norbert Schneider
n = 19043 35925 digits Jun 2012 PRP Norbert Schneider
b = 78
n = 2 4 digits Jun 2026 Prime
n = 4 8 digits Jun 2026 Prime
n = 34 65 digits Jun 2026 Prime
n = 174 330 digits Prime
n = 177 335 digits Prime
n = 2296 4345 digits Prime
b = 79
n = 2 4 digits Jun 2026 Prime
n = 4 8 digits Jun 2026 Prime
n = 16 31 digits Jun 2026 Prime
n = 29 56 digits Jun 2026 Prime
n = 47 90 digits Jun 2026 Prime
n = 142 270 digits Prime
n = 352 668 digits Prime
n = 4051 7688 digits PRP
n = 9587 18193 digits Dec 2011 PRP Norbert Schneider
b = 80
n = 93 177 digits Prime
n = 573 1091 digits Prime
n = 1061 2020 digits Prime
n = 30393 57841 digits Mar 2015 PRP Norbert Schneider
n = 40807 77660 digits Mar 2015 PRP Norbert Schneider
b = 81
n = 2 4 digits Jun 2026 Prime
n = 11 21 digits Jun 2026 Prime
n = 12 23 digits Jun 2026 Prime
n = 33 63 digits Jun 2026 Prime
n = 52 100 digits Jun 2026 Prime
n = 906 1730 digits Prime
n = 1696 3237 digits Prime
n = 5520 10535 digits Aug 2006 PRP Lelio R Paula
n = 6771 12923 digits Aug 2006 PRP Lelio R Paula
b = 82
n = 169 324 digits Prime
n = 915 1752 digits Prime
b = 83
n = 965 1852 digits Prime
n = 2421 4647 digits Prime
n = 12377 23753 digits Nov 2012 PRP Norbert Schneider
b = 84
n = 3 6 digits Jun 2026 Prime
n = 11 22 digits Jun 2026 Prime
n = 12 24 digits Jun 2026 Prime
n = 283 545 digits Prime
n = 4854 9341 digits PRP
n = 14491 27885 digits Nov 2012 PRP Norbert Schneider
n = 19381 37295 digits Feb 2013 PRP Norbert Schneider
b = 85
n = 3 6 digits Jun 2026 Prime
n = 4 8 digits Jun 2026 Prime
n = 23 45 digits Jun 2026 Prime
n = 25 49 digits Jun 2026 Prime
n = 90 174 digits Prime
n = 94 182 digits Prime
n = 143 276 digits Prime
n = 311 601 digits Prime
n = 612 1181 digits Prime
n = 1621 3128 digits Prime
n = 7296 14078 digits Jul 2012 PRP Norbert Schneider
n = 8586 16566 digits Jul 2012 PRP Norbert Schneider
b = 86
n = 29 57 digits Jun 2026 Prime
n = 49 95 digits Jun 2026 Prime
n = 121 235 digits Prime
n = 329 637 digits Prime
n = 335 649 digits Prime
n = 6329 12244 digits Jul 2012 PRP Norbert Schneider
n = 39337 76098 digits Oct 2015 PRP Norbert Schneider
b = 87
n = 3 6 digits Jun 2026 Prime
n = 7 14 digits Jun 2026 Prime
n = 13 26 digits Jun 2026 Prime
n = 33 65 digits Jun 2026 Prime
n = 85 165 digits Jun 2026 Prime
n = 90 175 digits Prime
n = 94 183 digits Prime
n = 563 1092 digits Prime
n = 657 1275 digits Prime
n = 810 1572 digits Prime
n = 829 1608 digits Prime
n = 2363 4584 digits Prime
n = 45803 88836 digits Nov 2015 PRP Norbert Schneider
b = 88
n = 2848 5538 digits Prime
n = 3077 5984 digits PRP
n = 11453 22271 digits Nov 2012 PRP Norbert Schneider
n = 13821 26875 digits Nov 2012 PRP Norbert Schneider
n = 57124 111077 digits Nov 2015 PRP Norbert Schneider
n = 58773 114284 digits Nov 2015 PRP Norbert Schneider
n = 58949 114626 digits Nov 2015 PRP Norbert Schneider
b = 89
n = 9 18 digits Jun 2026 Prime
n = 41 80 digits Jun 2026 Prime
n = 51 100 digits Jun 2026 Prime
n = 109 213 digits Prime
n = 483 942 digits Prime
n = 42211 82286 digits Jan 2016 PRP Norbert Schneider
b = 90
n = 2 4 digits Jun 2026 Prime
n = 3 6 digits Jun 2026 Prime
n = 5 10 digits Jun 2026 Prime
n = 6 12 digits Jun 2026 Prime
n = 127 249 digits Prime
n = 2221 4341 digits Prime
n = 8626 16858 digits Jul 2012 PRP Norbert Schneider
n = 8925 17442 digits Jul 2012 PRP Norbert Schneider
n = 21819 42640 digits Apr 2013 PRP Norbert Schneider
b = 91
n = 2 4 digits Jun 2026 Prime
n = 4 8 digits Jun 2026 Prime
n = 7 14 digits Jun 2026 Prime
n = 12 24 digits Jun 2026 Prime
n = 46 91 digits Jun 2026 Prime
n = 95 187 digits Prime
n = 375 735 digits Prime
n = 478 937 digits Prime
n = 1150 2253 digits Prime
n = 2812 5509 digits Prime
n = 18886 36999 digits Apr 2013 PRP Norbert Schneider
b = 92
n = 3 6 digits Jun 2026 Prime
n = 9475 18607 digits Aug 2012 PRP Norbert Schneider
n = 38335 75282 digits Jan 2016 PRP Norbert Schneider
b = 94
n = 4 8 digits Jun 2026 Prime
n = 72 143 digits Jun 2026 Prime
n = 210 415 digits Prime
n = 834 1646 digits Prime
n = 1217 2402 digits Prime
n = 1457 2875 digits Prime
n = 1582 3122 digits Prime
n = 7915 15618 digits Aug 2012 PRP Norbert Schneider
n = 9310 18370 digits Aug 2012 PRP Norbert Schneider
n = 14280 28177 digits Jan 2013 PRP Norbert Schneider
n = 16570 32695 digits May 2013 PRP Norbert Schneider
b = 95
n = 3 6 digits Jun 2026 Prime
n = 31 62 digits Jun 2026 Prime
n = 473 936 digits Prime
n = 2341 4630 digits Prime
b = 96
n = 7 14 digits Jun 2026 Prime
n = 91 181 digits Jun 2026 Prime
n = 285 565 digits Prime
n = 347 688 digits Prime
n = 6904 13686 digits Aug 2012 PRP Norbert Schneider
n = 8387 16626 digits Aug 2012 PRP Norbert Schneider
n = 31913 63261 digits Apr 2016 PRP Norbert Schneider
b = 97
n = 6 12 digits Jun 2026 Prime
n = 11 22 digits Jun 2026 Prime
n = 34 68 digits Jun 2026 Prime
n = 12239 24317 digits Feb 2013 PRP Norbert Schneider
n = 12503 24841 digits Feb 2013 PRP Norbert Schneider
n = 19937 39611 digits Jun 2013 PRP Norbert Schneider
b = 98
n = 5 10 digits Jun 2026 Prime
n = 201 401 digits Prime
n = 445 887 digits Prime
n = 449 895 digits Prime
n = 1505 2997 digits Prime
b = 99
n = 3 6 digits Jun 2026 Prime
n = 13 26 digits Jun 2026 Prime
n = 147 294 digits Prime
n = 682 1362 digits Prime
n = 774 1545 digits Prime
n = 1548 3090 digits Prime
n = 3565 7115 digits PRP
n = 14355 28648 digits Apr 2013 PRP Norbert Schneider
n = 25644 51177 digits Jul 2013 PRP Norbert Schneider
b = 100
n = 2 5 digits Jun 2026 Prime
n = 124 249 digits Prime
n = 1001 2003 digits Prime
n = 4079 8159 digits PRP
n = 10333 20667 digits Dec 2010 PRP Ray Chandler
n = 11927 23855 digits Dec 2010 PRP Robert Price
n = 36365 72731 digits May 2011 PRP Robert Price
n = 43408 86817 digits May 2011 PRP Robert Price
b = 101
n = 3 7 digits Jun 2026 Prime
n = 7 15 digits Jun 2026 Prime
n = 9 19 digits Jun 2026 Prime
n = 19 39 digits Jun 2026 Prime
n = 29 59 digits Jun 2026 Prime
n = 99 199 digits Jun 2026 Prime
n = 145 291 digits Prime
n = 623 1249 digits Prime
n = 3001 6015 digits PRP
n = 6225 12477 digits Nov 2005 PRP Theodore Burton
n = 23163 46427 digits Jul 2013 PRP Norbert Schneider
b = 102
n = 2 5 digits Jun 2026 Prime
n = 3 7 digits Jun 2026 Prime
n = 9 19 digits Jun 2026 Prime
n = 25 51 digits Jun 2026 Prime
n = 29 59 digits Jun 2026 Prime
n = 30 61 digits Jun 2026 Prime
n = 90 181 digits Jun 2026 Prime
n = 311 625 digits Prime
n = 577 1159 digits Prime
n = 811 1629 digits Prime
n = 2443 4908 digits Prime
n = 10539 21169 digits Apr 2013 PRP Norbert Schneider
b = 103
n = 5 11 digits Jun 2026 Prime
n = 17 35 digits Jun 2026 Prime
n = 18 37 digits Jun 2026 Prime
n = 40 81 digits Jun 2026 Prime
n = 42 85 digits Jun 2026 Prime
n = 45 91 digits Jun 2026 Prime
n = 3616 7279 digits PRP
n = 10441 21017 digits May 2013 PRP Norbert Schneider
n = 13192 26554 digits Sep 2013 PRP Norbert Schneider
n = 36005 72473 digits Oct 2016 PRP Norbert Schneider
n = 47825 96264 digits Oct 2016 PRP Norbert Schneider
b = 104
n = 55 111 digits Jun 2026 Prime
n = 425 858 digits Prime
n = 1777 3585 digits Prime
n = 33109 66782 digits Nov 2016 PRP Norbert Schneider
b = 105
n = 4 9 digits Jun 2026 Prime
n = 9 19 digits Jun 2026 Prime
n = 24 49 digits Jun 2026 Prime
n = 31 63 digits Jun 2026 Prime
n = 84 170 digits Jun 2026 Prime
n = 232 469 digits Prime
n = 1243 2513 digits Prime
n = 1893 3827 digits Prime
n = 5632 11384 digits Sep 2012 PRP Norbert Schneider
n = 12460 25185 digits Sep 2013 PRP Norbert Schneider
n = 14055 28408 digits Sep 2013 PRP Norbert Schneider
n = 29591 59810 digits Aug 2013 PRP Norbert Schneider
b = 106
n = 2 5 digits Jun 2026 Prime
n = 3 7 digits Jun 2026 Prime
n = 4 9 digits Jun 2026 Prime
n = 10 21 digits Jun 2026 Prime
n = 43 88 digits Jun 2026 Prime
n = 145 294 digits Prime
n = 454 920 digits Prime
n = 3010 6097 digits PRP
n = 3316 6716 digits PRP
n = 3334 6753 digits PRP
n = 7323 14832 digits Sep 2012 PRP Norbert Schneider
b = 107
n = 745 1512 digits Prime
n = 3031 6152 digits PRP
n = 53125 107812 digits Dec 2016 PRP Norbert Schneider
b = 108
n = 4 9 digits Jun 2026 Prime
n = 6 13 digits Jun 2026 Prime
n = 13 27 digits Jun 2026 Prime
n = 84 171 digits Jun 2026 Prime
n = 173 352 digits Prime
n = 444 903 digits Prime
n = 1498 3047 digits Prime
n = 1837 3736 digits Prime
n = 2525 5135 digits Prime
n = 3196 6499 digits Prime
n = 8573 17433 digits Jun 2013 PRP Norbert Schneider
n = 8988 18277 digits Jun 2013 PRP Norbert Schneider
b = 109
n = 4 9 digits Jun 2026 Prime
n = 12 25 digits Jun 2026 Prime
n = 33 68 digits Jun 2026 Prime
n = 88 180 digits Jun 2026 Prime
n = 112 229 digits Prime
n = 225 459 digits Prime
n = 528 1076 digits Prime
n = 870 1773 digits Prime
n = 1936 3945 digits Prime
n = 54683 111413 digits Feb 2017 PRP Norbert Schneider
b = 110
n = 61 125 digits Jun 2026 Prime
n = 283 578 digits Prime
b = 111
n = 2 5 digits Jun 2026 Prime
n = 3 7 digits Jun 2026 Prime
n = 9 19 digits Jun 2026 Prime
n = 12 25 digits Jun 2026 Prime
n = 25 52 digits Jun 2026 Prime
n = 329 673 digits Prime
n = 337 690 digits Prime
n = 532 1089 digits Prime
n = 1054 2156 digits Prime
b = 112
n = 2 5 digits Jun 2026 Prime
n = 15 31 digits Jun 2026 Prime
n = 255 523 digits Prime
n = 1051 2154 digits Prime
n = 14491 29696 digits Oct 2013 PRP Norbert Schneider
n = 14583 29884 digits Oct 2013 PRP Norbert Schneider
n = 18541 37995 digits Sep 2013 PRP Norbert Schneider
b = 114
n = 991 2039 digits Prime
n = 2297 4725 digits Prime
n = 4045 8321 digits PRP
b = 115
n = 4 9 digits Jun 2026 Prime
n = 9 19 digits Jun 2026 Prime
n = 11 23 digits Jun 2026 Prime
n = 19 40 digits Jun 2026 Prime
n = 21 44 digits Jun 2026 Prime
n = 161 332 digits Prime
n = 287 592 digits Prime
n = 1240 2556 digits Prime
n = 2416 4979 digits Prime
n = 4492 9257 digits PRP
n = 15355 31643 digits Oct 2013 PRP Norbert Schneider
n = 52842 108892 digits Jul 2018 PRP Norbert Schneider
b = 116
n = 3 7 digits Jun 2026 Prime
n = 15 31 digits Jun 2026 Prime
n = 2021 4173 digits Prime
n = 3641 7517 digits PRP
n = 6395 13203 digits Oct 2012 PRP Norbert Schneider
n = 6893 14231 digits Oct 2012 PRP Norbert Schneider
n = 17057 35214 digits Oct 2013 PRP Norbert Schneider
n = 43693 90203 digits Aug 2018 PRP Norbert Schneider
b = 117
n = 18 38 digits Jun 2026 Prime
n = 41 85 digits Jun 2026 Prime
n = 53 110 digits Jun 2026 Prime
n = 106 220 digits Jun 2026 Prime
n = 1194 2470 digits Prime
n = 26131 54044 digits Oct 2013 PRP Norbert Schneider
b = 118
n = 2 5 digits Jun 2026 Prime
n = 377 782 digits Prime
n = 32333 66991 digits Aug 2018 PRP Norbert Schneider
n = 41740 86481 digits Aug 2018 PRP Norbert Schneider
b = 119
n = 9 19 digits Jun 2026 Prime
n = 25 52 digits Jun 2026 Prime
n = 51 106 digits Jun 2026 Prime
n = 333 692 digits Prime
n = 695 1443 digits Prime
n = 6229 12929 digits Oct 2012 PRP Norbert Schneider
n = 27979 58072 digits Oct 2013 PRP Norbert Schneider
b = 120
n = 2 5 digits Jun 2026 Prime
n = 3 7 digits Jun 2026 Prime
n = 13 28 digits Jun 2026 Prime
n = 15 32 digits Jun 2026 Prime
n = 327 680 digits Prime
n = 439 913 digits Prime
n = 787 1637 digits Prime
n = 1431 2976 digits Prime
n = 2058 4279 digits Prime
n = 2187 4548 digits Prime
n = 2802 5826 digits PRP
n = 6873 14291 digits Oct 2012 PRP Norbert Schneider
n = 9877 20537 digits Aug 2013 PRP Norbert Schneider
n = 11272 23437 digits Aug 2013 PRP Norbert Schneider
n = 16276 33841 digits Oct 2013 PRP Norbert Schneider
n = 20680 42998 digits Oct 2013 PRP Norbert Schneider
n = 32079 66699 digits Sep 2018 PRP Norbert Schneider
n = 40105 83386 digits Sep 2018 PRP Norbert Schneider
b = 121
n = 4 9 digits Jun 2026 Prime
n = 10 21 digits Jun 2026 Prime
n = 353 736 digits Prime
n = 367 765 digits Prime
b = 122
n = 61 128 digits Jun 2026 Prime
n = 207 432 digits Prime
n = 819 1709 digits Prime
n = 18401 38392 digits Dec 2014 PRP Norbert Schneider
n = 42477 88623 digits Oct 2018 PRP Norbert Schneider
b = 123
n = 17 36 digits Jun 2026 Prime
n = 121 253 digits Jun 2026 Prime
n = 192 402 digits Prime
n = 33822 70685 digits Jan 2015 PRP Norbert Schneider
b = 124
n = 9 19 digits Jun 2026 Prime
n = 17 36 digits Jun 2026 Prime
n = 34 72 digits Jun 2026 Prime
n = 97 204 digits Jun 2026 Prime
n = 305 639 digits Prime
n = 891 1866 digits Prime
n = 1337 2799 digits Prime
n = 3213 6727 digits PRP
n = 10187 21326 digits Dec 2014 PRP Norbert Schneider
n = 11950 25017 digits Dec 2014 PRP Norbert Schneider
n = 12623 26426 digits Dec 2014 PRP Norbert Schneider
n = 13314 27872 digits Dec 2014 PRP Norbert Schneider
n = 18504 38737 digits Dec 2014 PRP Norbert Schneider
n = 30958 64809 digits Feb 2015 PRP Norbert Schneider
b = 125
n = 3 7 digits Jun 2026 Prime
n = 25 53 digits Jun 2026 Prime
n = 287 602 digits Prime
n = 1431 3001 digits Prime
n = 3457 7250 digits PRP
n = 8583 17998 digits Sep 2006 PRP Lelio R Paula
b = 126
n = 16 34 digits Jun 2026 Prime
n = 556 1168 digits Prime
n = 30706 64494 digits Feb 2015 PRP Norbert Schneider
n = 56824 119352 digits Dec 2018 PRP Norbert Schneider
b = 127
n = 18 38 digits Jun 2026 Prime
n = 37 78 digits Jun 2026 Prime
n = 49 104 digits Jun 2026 Prime
n = 59 125 digits Jun 2026 Prime
n = 21861 45992 digits Feb 2015 PRP Norbert Schneider
b = 128
n = 401 845 digits Prime
b = 129
n = 3 7 digits Jun 2026 Prime
n = 4 9 digits Jun 2026 Prime
n = 5 11 digits Jun 2026 Prime
n = 115 243 digits Jun 2026 Prime
n = 177 374 digits Prime
n = 298 629 digits Prime
n = 17631 37212 digits Dec 2014 PRP Norbert Schneider
n = 40167 84777 digits Jan 2019 PRP Norbert Schneider
b = 130
n = 3 7 digits Jun 2026 Prime
n = 7 15 digits Jun 2026 Prime
n = 34 72 digits Jun 2026 Prime
n = 35 74 digits Jun 2026 Prime
n = 61 129 digits Jun 2026 Prime
n = 83 176 digits Jun 2026 Prime
n = 96 203 digits Jun 2026 Prime
n = 417 882 digits Prime
n = 1482 3133 digits Prime
n = 2103 4446 digits Prime
n = 10231 21628 digits Dec 2014 PRP Norbert Schneider
n = 23332 49323 digits Mar 2015 PRP Norbert Schneider
b = 131
n = 25 53 digits Jun 2026 Prime
n = 223 473 digits Prime
n = 437 926 digits Prime
n = 601 1273 digits Prime
n = 649 1375 digits Prime
n = 1045 2213 digits Prime
n = 2027 4292 digits Prime
n = 43737 92604 digits Feb 2019 PRP Norbert Schneider
n = 52949 112108 digits Feb 2019 PRP Norbert Schneider
b = 132
n = 2 5 digits Jun 2026 Prime
n = 3 7 digits Jun 2026 Prime
n = 5 11 digits Jun 2026 Prime
n = 77 164 digits Jun 2026 Prime
n = 3035 6436 digits PRP
n = 20842 44198 digits Mar 2015 PRP Norbert Schneider
n = 27317 57928 digits Mar 2015 PRP Norbert Schneider
b = 133
n = 9 20 digits Jun 2026 Prime
n = 60 128 digits Jun 2026 Prime
n = 76 162 digits Jun 2026 Prime
n = 160 340 digits Prime
n = 26134 55505 digits Mar 2015 PRP Norbert Schneider
n = 51042 108406 digits Feb 2019 PRP Norbert Schneider
b = 134
n = 3 7 digits Jun 2026 Prime
n = 11 24 digits Jun 2026 Prime
n = 145 309 digits Prime
n = 219 466 digits Prime
n = 13571 28867 digits Jan 2015 PRP Norbert Schneider
n = 26151 55626 digits Mar 2015 PRP Norbert Schneider
n = 32955 70099 digits Mar 2015 PRP Norbert Schneider
n = 42719 90868 digits Mar 2019 PRP Norbert Schneider
b = 135
n = 13 28 digits Jun 2026 Prime
n = 18427 39256 digits Jan 2015 PRP Norbert Schneider
n = 28963 61701 digits Apr 2015 PRP Norbert Schneider
b = 136
n = 3 7 digits Jun 2026 Prime
n = 6 13 digits Jun 2026 Prime
n = 15 33 digits Jun 2026 Prime
n = 130 278 digits Jun 2026 Prime
n = 20710 44186 digits Apr 2015 PRP Norbert Schneider
b = 137
n = 5 11 digits Jun 2026 Prime
n = 39 84 digits Jun 2026 Prime
n = 375 802 digits Prime
n = 2079 4443 digits Prime
n = 2109 4507 digits Prime
n = 3627 7750 digits PRP
n = 3829 8182 digits PRP
n = 35597 76061 digits May 2015 PRP Norbert Schneider
b = 138
n = 4 9 digits Jun 2026 Prime
n = 9 20 digits Jun 2026 Prime
n = 1393 2981 digits Prime
n = 4318 9240 digits PRP
n = 13330 28525 digits Jan 2015 PRP Norbert Schneider
n = 22794 48777 digits Oct 2015 PRP Norbert Schneider
b = 139
n = 2 5 digits Jun 2026 Prime
n = 3 7 digits Jun 2026 Prime
n = 70 151 digits Jun 2026 Prime
n = 696 1492 digits Prime
n = 711 1524 digits Prime
n = 1980 4244 digits Prime
n = 3203 6865 digits PRP
n = 27504 58942 digits Oct 2015 PRP Norbert Schneider
n = 55690 119345 digits Apr 2019 PRP Norbert Schneider
b = 140
n = 3 7 digits Jun 2026 Prime
n = 25 54 digits Jun 2026 Prime
n = 193 415 digits Prime
n = 14323 30739 digits Jan 2015 PRP Norbert Schneider
n = 51515 110558 digits Apr 2019 PRP Norbert Schneider
b = 141
n = 3 7 digits Jun 2026 Prime
n = 9 20 digits Jun 2026 Prime
n = 19 41 digits Jun 2026 Prime
n = 41 89 digits Jun 2026 Prime
n = 77 166 digits Jun 2026 Prime
n = 171 368 digits Prime
n = 393 845 digits Prime
n = 1323 2844 digits Prime
n = 1331 2861 digits Prime
b = 142
n = 2 5 digits Jun 2026 Prime
n = 22 48 digits Jun 2026 Prime
n = 109 235 digits Jun 2026 Prime
n = 298 642 digits Prime
n = 3763 8100 digits PRP
b = 143
n = 281 606 digits Prime
b = 144
n = 2 5 digits Jun 2026 Prime
n = 12 26 digits Jun 2026 Prime
n = 29 63 digits Jun 2026 Prime
n = 79 171 digits Jun 2026 Prime
n = 221 477 digits Prime
n = 645 1393 digits Prime
n = 3864 8340 digits PRP
n = 5641 12176 digits Oct 2006 PRP Lelio R Paula
n = 19554 42205 digits Oct 2018 PRP Norbert Schneider
n = 27025 58330 digits Nov 2018 PRP Norbert Schneider
n = 33361 72006 digits Nov 2018 PRP Norbert Schneider
b = 145
n = 255 552 digits Prime
n = 1107 2393 digits Prime
n = 2755 5955 digits PRP
n = 3681 7956 digits PRP
n = 4521 9772 digits PRP
n = 27095 58563 digits Nov 2018 PRP Norbert Schneider
b = 146
n = 71 154 digits Jun 2026 Prime
n = 537 1163 digits Prime
n = 16361 35411 digits Oct 2018 PRP Norbert Schneider
b = 147
n = 3 7 digits Jun 2026 Prime
n = 7 16 digits Jun 2026 Prime
n = 13 29 digits Jun 2026 Prime
n = 66 144 digits Jun 2026 Prime
n = 97 211 digits Jun 2026 Prime
n = 111 241 digits Jun 2026 Prime
n = 150 326 digits Prime
n = 397 861 digits Prime
n = 4013 8698 digits PRP
n = 4217 9140 digits PRP
b = 148
n = 2 5 digits Jun 2026 Prime
n = 5 11 digits Jun 2026 Prime
n = 24 53 digits Jun 2026 Prime
n = 1570 3408 digits Prime
n = 1762 3825 digits Prime
n = 2182 4736 digits Prime
n = 2549 5532 digits Prime
n = 4585 9951 digits PRP
n = 43041 93411 digits May 2019 PRP Norbert Schneider
b = 149
n = 7 16 digits Jun 2026 Prime
b = 150
n = 90 196 digits Jun 2026 Prime
n = 181 394 digits Prime
n = 280 610 digits Prime
n = 946 2059 digits Prime
n = 1685 3667 digits Prime
n = 1775 3863 digits Prime
n = 2535 5517 digits Prime
n = 4830 10511 digits PRP
b = 151
n = 2 5 digits Jun 2026 Prime
n = 10 22 digits Jun 2026 Prime
n = 21 46 digits Jun 2026 Prime
n = 40 88 digits Jun 2026 Prime
n = 43 94 digits Jun 2026 Prime
n = 70 153 digits Jun 2026 Prime
n = 4846 10560 digits PRP
n = 23237 50633 digits Oct 2018 PRP Norbert Schneider
b = 153
n = 6 14 digits Jun 2026 Prime
n = 12 27 digits Jun 2026 Prime
n = 17 38 digits Jun 2026 Prime
n = 96 210 digits Jun 2026 Prime
n = 384 839 digits Prime
n = 21797 47620 digits Nov 2018 PRP Norbert Schneider
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n = 2887 6316 digits PRP
n = 20706 45295 digits Nov 2018 PRP Norbert Schneider
n = 23175 50696 digits Nov 2018 PRP Norbert Schneider
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n = 14255 31224 digits Oct 2018 PRP Norbert Schneider
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n = 29839 65769 digits Dec 2018 PRP Norbert Schneider
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n = 4545 10611 digits Sep 2006 PRP Lelio R Paula
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n = 3205 7907 digits Jan 2018 PRP Dylan Delgado
n = 5489 13541 digits Jan 2018 PRP Dylan Delgado
n = 7781 19195 digits Jan 2018 PRP Dylan Delgado
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b = 297
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n = 65 161 digits Jun 2026 Prime
n = 498 1232 digits Prime
n = 549 1358 digits Prime
n = 2091 5171 digits PRP
n = 4961 12268 digits PRP
n = 12577 31100 digits Jul 2012 PRP Enzo Doria
n = 14229 35185 digits Jul 2012 PRP Enzo Doria
b = 298
n = 6 15 digits Jun 2026 Prime
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b = 319
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b = 443
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b = 467
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b = 482
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b = 485
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b = 486
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b = 487
n = 13 35 digits Jun 2026 Prime
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b = 488
n = 5 14 digits Jun 2026 Prime
n = 17 46 digits Jun 2026 Prime
b = 489
n = 5 14 digits Jun 2026 Prime
n = 307 826 digits Jun 2026 Prime
b = 490
n = 2 6 digits Jun 2026 Prime
n = 3 9 digits Jun 2026 Prime
n = 138 372 digits Jun 2026 Prime
b = 491
n = 3 9 digits Jun 2026 Prime
n = 29 79 digits Jun 2026 Prime
n = 59 159 digits Jun 2026 Prime
b = 492
n = 23 62 digits Jun 2026 Prime
b = 493
n = 6 17 digits Jun 2026 Prime
n = 25 68 digits Jun 2026 Prime
b = 494
n = 3 9 digits Jun 2026 Prime
n = 5 14 digits Jun 2026 Prime
n = 27 73 digits Jun 2026 Prime
n = 333 898 digits Jun 2026 Prime
b = 495
n = 6 17 digits Jun 2026 Prime
n = 19 52 digits Jun 2026 Prime
n = 42 114 digits Jun 2026 Prime
n = 57 154 digits Jun 2026 Prime
n = 94 254 digits Jun 2026 Prime
b = 496
n = 2 6 digits Jun 2026 Prime
n = 5 14 digits Jun 2026 Prime
n = 21 57 digits Jun 2026 Prime
n = 191 515 digits Jun 2026 Prime
b = 497
n = 3 9 digits Jun 2026 Prime
n = 11 30 digits Jun 2026 Prime
b = 498
n = 4 11 digits Jun 2026 Prime
b = 499
n = 5 14 digits Jun 2026 Prime
b = 541
n = 841 2299 digits Prime
b = 569
n = 673 1855 digits Prime
b = 571
n = 393 1084 digits Prime
b = 577
n = 481 1329 digits Prime
b = 593
n = 537 1490 digits Prime
b = 613
n = 457 1274 digits Prime
b = 619
n = 604 1687 digits Prime
n = 886 2474 digits Prime
b = 643
n = 430 1208 digits Prime
b = 661
n = 923 2604 digits Prime
b = 673
n = 369 1044 digits Prime
b = 683
n = 569 1613 digits Prime
b = 691
n = 361 1026 digits Prime
b = 719
n = 677 1935 digits Prime
b = 743
n = 813 2335 digits Prime
b = 761
n = 425 1225 digits Prime
b = 769
n = 607 1752 digits Prime
b = 787
n = 645 1868 digits Prime
b = 811
n = 426 1240 digits Prime
n = 537 1563 digits Prime
n = 778 2264 digits Prime
b = 829
n = 477 1393 digits Prime
n = 637 1860 digits Prime
b = 853
n = 892 2615 digits Prime
b = 883
n = 492 1450 digits Prime
b = 937
n = 346 1029 digits Prime
n = 627 1864 digits Prime
b = 941
n = 593 1764 digits Prime
b = 947
n = 817 2432 digits Prime
b = 967
n = 358 1069 digits Prime
b = 977
n = 421 1259 digits Prime
b = 997
n = 529 1587 digits Prime