Known generalized Wagstaff (probable) primes for b < 100000
Expression: (b^n+1)/(b+1)
b = 3
n = 3 1 digits Sep 2000 Prime
n = 5 2 digits Sep 2000 Prime
n = 7 3 digits Sep 2000 Prime
n = 13 6 digits Sep 2000 Prime
n = 23 11 digits Sep 2000 Prime
n = 43 20 digits Sep 2000 Prime
n = 281 134 digits Sep 2000 Prime
n = 359 171 digits Sep 2000 Prime
n = 487 232 digits Sep 2000 Prime
n = 577 275 digits Sep 2000 Prime
n = 1579 753 digits Sep 2000 Prime
n = 1663 793 digits Sep 2000 Prime
n = 1741 831 digits Sep 2000 Prime
n = 3191 1522 digits Sep 2000 Prime
n = 9209 4394 digits Sep 2000 Prime
n = 11257 5371 digits Sep 2000 Prime
n = 12743 6080 digits Sep 2000 Prime
n = 13093 6247 digits Sep 2000 Prime
n = 13339 6364 digits Sep 2000 PRP
n = 17027 8124 digits Sep 2000 Prime
n = 26633 12707 digits Oct 2000 Prime Henri Lifchitz
n = 104243 49736 digits May 2004 PRP Kamil Duszenko
n = 134227 64042 digits Nov 2007 PRP Paul Bourdelais
n = 152287 72659 digits Apr 2008 PRP Paul Bourdelais
n = 700897 334413 digits Apr 2010 PRP Paul Bourdelais
n = 1205459 575150 digits Aug 2015 PRP Paul Bourdelais
n = 1896463 904843 digits Jan 2020 PRP Paul Bourdelais
n = 2533963 1209008 digits Mar 2020 PRP Paul Bourdelais
n = 2674381 1276004 digits Mar 2024 PRP Paul Bourdelais
n = 7034611 3356362 digits Dec 2024 PRP Paul Bourdelais
b = 4
n = 3 2 digits Prime Richard Fischer
b = 5
n = 5 3 digits Sep 2000 Prime
n = 67 47 digits Sep 2000 Prime
n = 101 70 digits Sep 2000 Prime
n = 103 72 digits Sep 2000 Prime
n = 229 160 digits Sep 2000 Prime
n = 347 242 digits Sep 2000 Prime
n = 4013 2805 digits Sep 2000 Prime
n = 23297 16284 digits Jun 2003 PRP Kamil Duszenko
n = 30133 21062 digits Aug 2007 PRP Henri Lifchitz
n = 177337 123953 digits Nov 2008 PRP Paul Bourdelais
n = 193939 135557 digits Dec 2008 PRP Paul Bourdelais
n = 266863 186529 digits Jul 2010 PRP Paul Bourdelais
n = 277183 193742 digits Dec 2025 PRP Henri Lifchitz
n = 335429 234455 digits Aug 2010 PRP Paul Bourdelais
n = 1856147 1297391 digits Feb 2019 PRP Paul Bourdelais
b = 6
n = 3 2 digits Sep 2000 Prime
n = 11 8 digits Sep 2000 Prime
n = 31 24 digits Sep 2000 Prime
n = 43 33 digits Sep 2000 Prime
n = 47 36 digits Sep 2000 Prime
n = 59 46 digits Sep 2000 Prime
n = 107 83 digits Sep 2000 Prime
n = 811 631 digits Sep 2000 Prime
n = 2819 2193 digits Sep 2000 Prime
n = 4817 3748 digits Sep 2000 Prime
n = 9601 7471 digits Sep 2000 Prime
n = 33581 26131 digits Jul 2003 PRP Kamil Duszenko
n = 38447 29917 digits Sep 2007 PRP Henri Lifchitz
n = 41341 32169 digits Oct 2007 PRP Paul Bourdelais
n = 131891 102631 digits Jan 2010 PRP Paul Bourdelais
n = 196337 152780 digits Feb 2010 PRP Paul Bourdelais
n = 1313371 1022001 digits Jan 2019 PRP Paul Bourdelais
n = 4120873 3206662 digits Apr 2026 PRP Paul Bourdelais
b = 7
n = 3 2 digits Sep 2000 Prime
n = 17 14 digits Sep 2000 Prime
n = 23 19 digits Sep 2000 Prime
n = 29 24 digits Sep 2000 Prime
n = 47 39 digits Sep 2000 Prime
n = 61 51 digits Sep 2000 Prime
n = 1619 1368 digits Sep 2000 Prime
n = 18251 15423 digits Sep 2000 Prime
n = 106187 89738 digits Apr 2008 PRP Paul Bourdelais
n = 201653 170416 digits Feb 2010 PRP Paul Bourdelais
n = 1178033 995553 digits Jan 2019 PRP Paul Bourdelais
n = 1321757 1117014 digits Oct 2025 PRP Paul Bourdelais
n = 1827773 1544647 digits Oct 2025 PRP Paul Bourdelais
n = 3417779 2888358 digits Nov 2025 PRP Paul Bourdelais
b = 9
n = 3 2 digits Sep 2000 Prime
n = 59 56 digits Sep 2000 Prime
n = 223 212 digits Sep 2000 Prime
n = 547 521 digits Sep 2000 Prime
n = 773 737 digits Sep 2000 Prime
n = 1009 962 digits Sep 2000 Prime
n = 1823 1739 digits Sep 2000 Prime
n = 3803 3628 digits Sep 2000 Prime
n = 49223 46970 digits Oct 2007 PRP Paul Bourdelais
n = 193247 184404 digits Feb 2010 PRP Paul Bourdelais
n = 703393 671207 digits Aug 2015 PRP Paul Bourdelais
n = 860029 820676 digits Sep 2020 PRP Paul Bourdelais
n = 2698541 2575062 digits Feb 2026 PRP Paul Bourdelais
b = 10
n = 5 4 digits Sep 2000 Prime
n = 7 6 digits Sep 2000 Prime
n = 19 18 digits Sep 2000 Prime
n = 31 30 digits Sep 2000 Prime
n = 53 52 digits Sep 2000 Prime
n = 67 66 digits Sep 2000 Prime
n = 293 292 digits Sep 2000 Prime
n = 641 640 digits Sep 2000 Prime
n = 2137 2136 digits Sep 2000 Prime
n = 3011 3010 digits Sep 2000 Prime
n = 268207 268206 digits Feb 2010 PRP Paul Bourdelais
n = 1600787 1600786 digits May 2020 PRP Paul Bourdelais
b = 11
n = 5 5 digits Sep 2000 Prime
n = 7 7 digits Sep 2000 Prime
n = 179 186 digits Sep 2000 Prime
n = 229 238 digits Sep 2000 Prime
n = 439 457 digits Sep 2000 Prime
n = 557 579 digits Sep 2000 Prime
n = 6113 6365 digits Sep 2000 Prime
n = 223999 233270 digits Feb 2010 PRP Paul Bourdelais
n = 327001 340536 digits Sep 2013 PRP Paul Bourdelais
n = 2264611 2358349 digits Jul 2021 PRP Paul Bourdelais
b = 12
n = 5 5 digits Sep 2000 Prime
n = 11 11 digits Sep 2000 Prime
n = 109 117 digits Sep 2000 Prime
n = 193 208 digits Sep 2000 Prime
n = 1483 1600 digits Sep 2000 Prime
n = 11353 12251 digits Aug 2007 Prime Henri Lifchitz
n = 21419 23114 digits Sep 2007 PRP Henri Lifchitz
n = 21911 23645 digits Sep 2007 PRP Henri Lifchitz
n = 24071 25976 digits Sep 2007 PRP Henri Lifchitz
n = 106859 115320 digits Feb 2010 PRP Paul Bourdelais
n = 139739 150803 digits Sep 2011 PRP Paul Bourdelais
n = 495953 535223 digits Nov 2018 PRP Paul Bourdelais
b = 13
n = 3 3 digits Sep 2000 Prime
n = 11 12 digits Sep 2000 Prime
n = 17 18 digits Sep 2000 Prime
n = 19 21 digits Sep 2000 Prime
n = 919 1023 digits Sep 2000 Prime
n = 1151 1282 digits Sep 2000 Prime
n = 2791 3108 digits Sep 2000 Prime
n = 9323 10385 digits Sep 2000 Prime
n = 56333 62751 digits Mar 2010 PRP Paul Bourdelais
n = 1199467 1336138 digits Dec 2015 PRP Paul Bourdelais
b = 14
n = 7 7 digits Sep 2000 Prime
n = 53 60 digits Sep 2000 Prime
n = 503 576 digits Sep 2000 Prime
n = 1229 1408 digits Sep 2000 Prime
n = 22637 25944 digits Oct 2007 PRP Henri Lifchitz
n = 1091401 1250885 digits Mar 2014 PRP Paul Bourdelais
n = 1385203 1587619 digits Feb 2022 PRP Paul Bourdelais
n = 1522841 1745370 digits Feb 2025 PRP Paul Bourdelais
n = 2307467 2644652 digits Jun 2025 PRP Paul Bourdelais
b = 15
n = 3 3 digits Sep 2000 Prime
n = 7 8 digits Sep 2000 Prime
n = 29 33 digits Sep 2000 Prime
n = 1091 1282 digits Sep 2000 Prime
n = 2423 2849 digits Sep 2000 Prime
n = 54449 64036 digits Mar 2010 PRP Paul Bourdelais
n = 67489 79373 digits Mar 2010 PRP Paul Bourdelais
n = 551927 649116 digits Jul 2013 PRP Paul Bourdelais
n = 1841911 2166255 digits Jul 2024 PRP Paul Bourdelais
n = 1848811 2174370 digits Jul 2024 PRP Paul Bourdelais
b = 16
n = 3 3 digits Sep 2000 Prime
n = 5 5 digits Sep 2000 Prime
n = 7 8 digits Sep 2000 Prime
n = 23 27 digits Sep 2000 Prime
n = 37 44 digits Sep 2000 Prime
n = 89 106 digits Sep 2000 Prime
n = 149 179 digits Sep 2000 Prime
n = 173 208 digits Sep 2000 Prime
n = 251 302 digits Sep 2000 Prime
n = 307 369 digits Sep 2000 Prime
n = 317 381 digits Sep 2000 Prime
n = 30197 36360 digits Jul 2000 PRP Richard McIntosh
n = 1025393 1234695 digits Aug 2014 PRP Paul Bourdelais
b = 17
n = 7 8 digits Sep 2000 Prime
n = 17 20 digits Sep 2000 Prime
n = 23 28 digits Sep 2000 Prime
n = 47 57 digits Sep 2000 Prime
n = 967 1189 digits Sep 2000 Prime
n = 6653 8185 digits Sep 2000 PRP
n = 8297 10208 digits Sep 2000 PRP
n = 41221 50720 digits Mar 2010 PRP Paul Bourdelais
n = 113621 139804 digits Sep 2011 PRP Paul Bourdelais
n = 233689 287542 digits Sep 2013 PRP Paul Bourdelais
n = 348259 428514 digits May 2014 PRP Paul Bourdelais
b = 18
n = 3 3 digits Sep 2000 Prime
n = 7 8 digits Sep 2000 Prime
n = 23 28 digits Sep 2000 Prime
n = 73 91 digits Sep 2000 Prime
n = 733 919 digits Sep 2000 Prime
n = 941 1180 digits Sep 2000 Prime
n = 1097 1376 digits Sep 2000 Prime
n = 1933 2426 digits Sep 2000 Prime
n = 4651 5837 digits Sep 2000 Prime
n = 481147 603970 digits Jul 2011 PRP Paul Bourdelais
b = 19
n = 17 21 digits Sep 2000 Prime
n = 37 47 digits Sep 2000 Prime
n = 157 200 digits Sep 2000 Prime
n = 163 208 digits Sep 2000 Prime
n = 631 806 digits Sep 2000 Prime
n = 7351 9399 digits Sep 2000 PRP
n = 26183 33481 digits Oct 2007 PRP Henri Lifchitz
n = 30713 39274 digits Mar 2010 PRP Paul Bourdelais
n = 41201 52685 digits Mar 2010 PRP Paul Bourdelais
n = 77951 99679 digits Mar 2010 PRP Paul Bourdelais
n = 476929 609874 digits Mar 2015 PRP Paul Bourdelais
b = 20
n = 5 6 digits Sep 2000 Prime
n = 79 102 digits Sep 2000 Prime
n = 89 115 digits Sep 2000 Prime
n = 709 922 digits Sep 2000 Prime
n = 797 1036 digits Sep 2000 Prime
n = 1163 1512 digits Sep 2000 Prime
n = 6971 9069 digits Sep 2000 PRP
n = 140053 182212 digits Apr 2010 PRP Paul Bourdelais
n = 177967 231540 digits May 2013 PRP Paul Bourdelais
n = 393257 511638 digits Dec 2014 PRP Paul Bourdelais
n = 463511 603041 digits Mar 2025 PRP Paul Bourdelais
b = 21
n = 3 3 digits Sep 2000 Prime
n = 5 6 digits Sep 2000 Prime
n = 7 8 digits Sep 2000 Prime
n = 13 16 digits Sep 2000 Prime
n = 37 48 digits Sep 2000 Prime
n = 347 458 digits Sep 2000 Prime
n = 17597 23266 digits Aug 2007 PRP Henri Lifchitz
n = 59183 78252 digits Mar 2010 PRP Paul Bourdelais
n = 80761 106783 digits Mar 2010 PRP Paul Bourdelais
n = 210599 278457 digits Aug 2013 PRP Paul Bourdelais
n = 394579 521719 digits Oct 2018 PRP Paul Bourdelais
b = 22
n = 3 3 digits Sep 2000 Prime
n = 5 6 digits Sep 2000 Prime
n = 13 17 digits Sep 2000 Prime
n = 43 57 digits Sep 2000 Prime
n = 79 105 digits Sep 2000 Prime
n = 101 135 digits Sep 2000 Prime
n = 107 143 digits Sep 2000 Prime
n = 227 304 digits Sep 2000 Prime
n = 353 473 digits Sep 2000 Prime
n = 7393 9924 digits Sep 2000 PRP
n = 50287 67506 digits Jun 2013 PRP Robert Price
b = 23
n = 11 14 digits Sep 2000 Prime
n = 13 17 digits Sep 2000 Prime
n = 67 90 digits Sep 2000 Prime
n = 109 148 digits Sep 2000 Prime
n = 331 450 digits Sep 2000 Prime
n = 587 798 digits Sep 2000 Prime
n = 24071 32777 digits PRP Richard Fischer
n = 29881 40689 digits Jul 2012 PRP Anand Nair
n = 44053 59987 digits Jun 2013 PRP Robert Price
b = 24
n = 7 9 digits Sep 2000 Prime
n = 11 14 digits Sep 2000 Prime
n = 19 25 digits Sep 2000 Prime
n = 2207 3045 digits Sep 2000 Prime
n = 2477 3418 digits Sep 2000 Prime
n = 4951 6833 digits Sep 2000 Prime
n = 821497 1133838 digits Jan 2025 PRP Paul Bourdelais
b = 25
n = 3 3 digits Sep 2000 Prime
n = 7 9 digits Sep 2000 Prime
n = 23 31 digits Sep 2000 Prime
n = 29 40 digits Sep 2000 Prime
n = 59 82 digits Sep 2000 Prime
n = 1249 1745 digits Sep 2000 Prime
n = 1709 2388 digits Sep 2000 Prime
n = 1823 2548 digits Sep 2000 Prime
n = 1931 2699 digits Sep 2000 Prime
n = 3433 4798 digits Sep 2000 Prime
n = 8863 12389 digits Sep 2000 PRP
n = 43201 60391 digits Jun 2013 Prime Robert Price
n = 78707 110027 digits Jun 2013 PRP Robert Price
b = 26
n = 11 15 digits Sep 2000 Prime
n = 109 153 digits Sep 2000 Prime
n = 227 320 digits Sep 2000 Prime
n = 277 391 digits Sep 2000 Prime
n = 347 490 digits Sep 2000 Prime
n = 857 1212 digits Sep 2000 Prime
n = 2297 3249 digits Sep 2000 Prime
n = 9043 12795 digits Sep 2000 PRP
n = 501409 709479 digits Oct 2023 PRP Paul Bourdelais
b = 28
n = 3 3 digits Sep 2000 Prime
n = 19 27 digits Sep 2000 Prime
n = 373 539 digits Sep 2000 Prime
n = 419 605 digits Sep 2000 Prime
n = 491 710 digits Sep 2000 Prime
n = 1031 1491 digits Sep 2000 Prime
n = 83497 120832 digits Jul 2013 PRP Robert Price
n = 223381 323267 digits Dec 2020 PRP Paul Bourdelais
b = 29
n = 7 9 digits Sep 2000 Prime
n = 112153 164011 digits Mar 2017 PRP Lelio R Paula
n = 151153 221045 digits Sep 2017 PRP Paul Bourdelais
b = 30
n = 139 204 digits Sep 2000 Prime
n = 173 255 digits Sep 2000 Prime
n = 547 807 digits Sep 2000 Prime
n = 829 1224 digits Sep 2000 Prime
n = 2087 3082 digits Sep 2000 Prime
n = 2719 4015 digits Sep 2000 Prime
n = 3109 4591 digits Sep 2000 Prime
n = 10159 15005 digits Nov 2004 Prime Richard Fischer
n = 56543 83520 digits Jul 2013 PRP Robert Price
n = 80599 119054 digits Jul 2013 PRP Robert Price
b = 31
n = 109 162 digits Sep 2000 Prime
n = 461 687 digits Sep 2000 Prime
n = 1061 1581 digits Sep 2000 Prime
n = 50777 75726 digits Jul 2013 PRP Robert Price
b = 33
n = 5 7 digits Sep 2000 Prime
n = 67 101 digits Sep 2000 Prime
n = 157 237 digits Sep 2000 Prime
n = 12211 18542 digits Sep 2007 PRP Henri Lifchitz
n = 313553 476134 digits Feb 2021 PRP Paul Bourdelais
b = 34
n = 3 4 digits Sep 2000 Prime
n = 294277 450678 digits Jun 2018 PRP Paul Bourdelais
n = 735439 1126308 digits Oct 2023 PRP Paul Bourdelais
b = 35
n = 11 16 digits Sep 2000 Prime
n = 13 19 digits Sep 2000 Prime
n = 79 121 digits Sep 2000 Prime
n = 127 195 digits Sep 2000 Prime
n = 503 776 digits Sep 2000 Prime
n = 617 952 digits Sep 2000 Prime
n = 709 1094 digits Sep 2000 Prime
n = 857 1322 digits Sep 2000 Prime
n = 1499 2314 digits Sep 2000 Prime
n = 3823 5902 digits Sep 2000 Prime
n = 135623 209410 digits Jul 2018 PRP Paul Bourdelais
n = 280979 433850 digits Sep 2021 PRP Paul Bourdelais
b = 36
n = 31 47 digits Sep 2000 Prime
n = 191 296 digits Sep 2000 Prime
n = 257 399 digits Sep 2000 Prime
n = 367 570 digits Sep 2000 Prime
n = 3061 4763 digits Sep 2000 Prime
n = 110503 171975 digits Apr 2017 PRP Lelio R Paula
n = 1145393 1782577 digits Nov 2023 PRP Paul Bourdelais
b = 37
n = 5 7 digits Sep 2000 Prime
n = 7 10 digits Sep 2000 Prime
n = 2707 4244 digits Sep 2000 Prime
n = 163193 255918 digits Jul 2019 PRP Paul Bourdelais
b = 38
n = 5 7 digits Sep 2000 Prime
n = 167 263 digits Sep 2000 Prime
n = 1063 1678 digits Sep 2000 Prime
n = 1597 2522 digits Sep 2000 Prime
n = 2749 4342 digits Sep 2000 Prime
n = 3373 5328 digits Sep 2000 Prime
n = 13691 21628 digits Sep 2007 PRP Henri Lifchitz
n = 83891 132529 digits Sep 2013 PRP Robert Price
n = 131591 207884 digits Jul 2018 PRP Paul Bourdelais
b = 39
n = 3 4 digits Sep 2000 Prime
n = 13 20 digits Sep 2000 Prime
n = 149 236 digits Sep 2000 Prime
n = 15377 24465 digits Sep 2007 PRP Henri Lifchitz
b = 40
n = 53 84 digits Sep 2000 Prime
n = 67 106 digits Sep 2000 Prime
n = 1217 1949 digits Sep 2000 Prime
n = 5867 9398 digits Sep 2000 PRP
n = 6143 9840 digits Sep 2000 PRP
n = 11681 18713 digits Sep 2007 PRP Henri Lifchitz
n = 29959 47995 digits Sep 2013 PRP Robert Price
b = 41
n = 17 26 digits Sep 2000 Prime
n = 691 1113 digits Sep 2000 Prime
n = 113749 183451 digits Nov 2017 PRP Paul Bourdelais
n = 389089 627515 digits Jun 2026 PRP Paul Bourdelais
b = 42
n = 3 4 digits Sep 2000 Prime
n = 709 1150 digits Sep 2000 Prime
n = 1637 2656 digits Sep 2000 Prime
n = 17911 29073 digits Sep 2007 PRP Henri Lifchitz
n = 127609 207140 digits Jul 2018 PRP Paul Bourdelais
n = 172663 280274 digits Jul 2019 PRP Paul Bourdelais
b = 43
n = 5 7 digits Sep 2000 Prime
n = 7 10 digits Sep 2000 Prime
n = 19 30 digits Sep 2000 Prime
n = 251 409 digits Sep 2000 Prime
n = 277 451 digits Sep 2000 Prime
n = 383 624 digits Sep 2000 Prime
n = 503 820 digits Sep 2000 Prime
n = 3019 4930 digits Sep 2000 Prime
n = 4517 7377 digits Sep 2000 Prime
n = 9967 16280 digits Nov 2004 PRP Richard Fischer
n = 29573 48305 digits Nov 2013 PRP Robert Price
b = 44
n = 7 10 digits Sep 2000 Prime
n = 41233 67763 digits Nov 2013 PRP Robert Price
b = 45
n = 103 169 digits Sep 2000 Prime
n = 157 258 digits Sep 2000 Prime
n = 37159 61431 digits Nov 2013 PRP Robert Price
b = 46
n = 7 10 digits Sep 2000 Prime
n = 23 37 digits Sep 2000 Prime
n = 59 97 digits Sep 2000 Prime
n = 71 117 digits Sep 2000 Prime
n = 107 177 digits Sep 2000 Prime
n = 223 370 digits Sep 2000 Prime
n = 331 549 digits Sep 2000 Prime
n = 2207 3669 digits Sep 2000 Prime
n = 6841 11374 digits Sep 2000 PRP
n = 94841 157696 digits Jan 2014 PRP Robert Price
b = 47
n = 5 7 digits Sep 2000 Prime
n = 19 31 digits Sep 2000 Prime
n = 23 37 digits Sep 2000 Prime
n = 79 131 digits Sep 2000 Prime
n = 1783 2980 digits Sep 2000 Prime
n = 7681 12842 digits Sep 2000 PRP
b = 48
n = 5 7 digits Sep 2000 Prime
n = 17 27 digits Sep 2000 Prime
n = 131 219 digits Sep 2000 Prime
n = 84589 142213 digits Jan 2014 PRP Robert Price
b = 49
n = 7 11 digits Sep 2000 Prime
n = 19 31 digits Sep 2000 Prime
n = 37 61 digits Sep 2000 Prime
n = 83 139 digits Sep 2000 Prime
n = 1481 2502 digits Sep 2000 Prime
n = 12527 21172 digits Sep 2007 PRP Henri Lifchitz
n = 20149 34055 digits Oct 2013 PRP Richard Fischer
b = 50
n = 1153 1958 digits Sep 2000 Prime
n = 26903 45706 digits Mar 2014 PRP Robert Price
n = 56597 96155 digits Mar 2014 PRP Robert Price
b = 51
n = 3 4 digits Sep 2000 Prime
n = 149 253 digits Sep 2000 Prime
n = 3253 5554 digits Sep 2000 Prime
b = 52
n = 7 11 digits Sep 2000 Prime
n = 163 278 digits Sep 2000 Prime
n = 197 337 digits Sep 2000 Prime
n = 223 381 digits Sep 2000 Prime
n = 467 800 digits Sep 2000 Prime
n = 5281 9061 digits Sep 2000 PRP
n = 52901 90777 digits Aug 2017 PRP Paul Bourdelais
n = 85259 146304 digits Sep 2017 PRP Paul Bourdelais
b = 53
n = 21943 37835 digits Jan 2004 PRP Tony D. Noe
n = 24697 42583 digits Apr 2017 PRP Richard Fischer
n = 158341 273022 digits Jul 2019 PRP Paul Bourdelais
b = 54
n = 7 11 digits Sep 2000 Prime
n = 19 32 digits Sep 2000 Prime
n = 67 115 digits Sep 2000 Prime
n = 197 340 digits Sep 2000 Prime
n = 991 1716 digits Sep 2000 Prime
n = 99563 172481 digits Nov 2017 PRP Paul Bourdelais
n = 128189 222073 digits Nov 2018 PRP Paul Bourdelais
n = 164839 285565 digits Jul 2019 PRP Paul Bourdelais
b = 55
n = 3 4 digits Sep 2000 Prime
n = 5 7 digits Sep 2000 Prime
n = 179 310 digits Sep 2000 Prime
n = 229 397 digits Sep 2000 Prime
n = 1129 1964 digits Sep 2000 Prime
n = 1321 2298 digits Sep 2000 Prime
n = 2251 3916 digits Sep 2000 Prime
n = 15061 26210 digits May 2013 PRP Richard Fischer
n = 299087 520519 digits Feb 2022 PRP Paul Bourdelais
b = 56
n = 37 63 digits Sep 2000 Prime
n = 107 186 digits Sep 2000 Prime
n = 1063 1857 digits Sep 2000 Prime
n = 4019 7025 digits Sep 2000 PRP
b = 57
n = 53 92 digits Sep 2000 Prime
n = 227 397 digits Sep 2000 Prime
n = 18211 31975 digits Aug 2013 PRP Richard Fischer
n = 20231 35522 digits Jun 2015 PRP Richard Fischer
n = 22973 40336 digits Aug 2015 PRP Richard Fischer
n = 87719 154022 digits Nov 2017 PRP Paul Bourdelais
n = 111119 195110 digits Oct 2017 PRP Paul Bourdelais
b = 58
n = 3 4 digits Sep 2000 Prime
n = 17 29 digits Sep 2000 Prime
n = 1447 2550 digits Sep 2000 Prime
n = 11003 19402 digits Jul 2008 PRP Richard Fischer
b = 59
n = 17 29 digits Sep 2000 Prime
n = 43 75 digits Sep 2000 Prime
n = 991 1754 digits Sep 2000 Prime
n = 33613 59522 digits Aug 2017 PRP Paul Bourdelais
n = 203309 360029 digits Sep 2021 PRP Paul Bourdelais
b = 60
n = 3 4 digits Sep 2000 Prime
n = 937 1665 digits Sep 2000 Prime
n = 1667 2963 digits Sep 2000 Prime
n = 3917 6964 digits Sep 2000 PRP
n = 18077 32142 digits Aug 2013 PRP Richard Fischer
n = 31393 55820 digits Aug 2017 PRP Paul Bourdelais
n = 119083 211746 digits Oct 2018 PRP Paul Bourdelais
b = 61
n = 7 11 digits Sep 2000 Prime
n = 41 72 digits Sep 2000 Prime
n = 359 640 digits Sep 2000 Prime
n = 17657 31522 digits Nov 2012 PRP Pedja Terzic
b = 62
n = 11 18 digits Sep 2000 Prime
n = 29 51 digits Sep 2000 Prime
n = 167 298 digits Sep 2000 Prime
n = 313 560 digits Sep 2000 Prime
n = 16567 29693 digits Jul 2013 PRP Richard Fischer
n = 38699 69362 digits Aug 2017 PRP Paul Bourdelais
n = 170539 305671 digits Dec 2020 PRP Paul Bourdelais
n = 286483 513488 digits Feb 2022 PRP Paul Bourdelais
b = 63
n = 3 4 digits Sep 2000 Prime
n = 37 65 digits Sep 2000 Prime
n = 41 72 digits Sep 2000 Prime
n = 2131 3833 digits Sep 2000 Prime
n = 4027 7245 digits Sep 2000 PRP
n = 22283 40093 digits Jul 2015 PRP Richard Fischer
n = 51439 92555 digits Aug 2017 PRP Paul Bourdelais
n = 102103 183717 digits Oct 2017 PRP Paul Bourdelais
n = 188147 338539 digits Dec 2020 PRP Paul Bourdelais
n = 238481 429107 digits Dec 2020 PRP Paul Bourdelais
b = 65
n = 19 33 digits Sep 2000 Prime
n = 31 55 digits Sep 2000 Prime
b = 66
n = 7 11 digits Sep 2000 Prime
n = 17 30 digits Sep 2000 Prime
n = 211 383 digits Sep 2000 Prime
n = 643 1169 digits Sep 2000 Prime
n = 28921 52622 digits Aug 2017 PRP Paul Bourdelais
n = 58741 106881 digits Aug 2017 PRP Paul Bourdelais
n = 63079 114774 digits Sep 2017 PRP Paul Bourdelais
n = 67349 122543 digits Sep 2017 PRP Paul Bourdelais
b = 67
n = 3 4 digits Sep 2000 Prime
n = 2347 4284 digits Sep 2000 Prime
n = 2909 5311 digits Sep 2000 Prime
n = 3203 5848 digits Sep 2000 PRP
n = 203431 371479 digits Sep 2021 PRP Paul Bourdelais
n = 239053 436527 digits Sep 2021 PRP Paul Bourdelais
b = 68
n = 757 1386 digits Sep 2000 Prime
n = 773 1415 digits Sep 2000 Prime
n = 71713 131413 digits Sep 2017 PRP Paul Bourdelais
n = 294947 540492 digits Mar 2025 PRP Paul Bourdelais
b = 69
n = 11 19 digits Sep 2000 Prime
n = 211 387 digits Sep 2000 Prime
n = 239 438 digits Sep 2000 Prime
n = 389 714 digits Sep 2000 Prime
n = 503 924 digits Sep 2000 Prime
n = 4649 8547 digits Sep 2000 PRP
n = 24847 45689 digits Apr 2017 PRP Richard Fischer
b = 70
n = 3 4 digits Sep 2000 Prime
n = 61 111 digits Sep 2000 Prime
n = 97 178 digits Sep 2000 Prime
n = 13399 24721 digits Apr 2013 PRP Richard Fischer
n = 42737 78853 digits Aug 2017 PRP Paul Bourdelais
b = 71
n = 5 8 digits Sep 2000 Prime
n = 37 67 digits Sep 2000 Prime
n = 5351 9905 digits Sep 2000 PRP
n = 7499 13881 digits Apr 2007 PRP Faysal YAtim
n = 68539 126882 digits Sep 2017 PRP Paul Bourdelais
n = 77761 143954 digits Sep 2017 PRP Paul Bourdelais
b = 72
n = 3 4 digits Sep 2000 Prime
n = 7 12 digits Sep 2000 Prime
n = 79 145 digits Sep 2000 Prime
n = 277 513 digits Sep 2000 Prime
n = 3119 5792 digits Sep 2000 Prime
b = 73
n = 7 12 digits Sep 2000 Prime
n = 39181 73005 digits Aug 2017 PRP Paul Bourdelais
n = 280697 523028 digits Feb 2022 PRP Paul Bourdelais
b = 74
n = 13 23 digits Sep 2000 Prime
n = 31 57 digits Sep 2000 Prime
n = 37 68 digits Sep 2000 Prime
n = 109 202 digits Sep 2000 Prime
n = 17383 32491 digits Aug 2013 PRP Richard Fischer
n = 167311 312742 digits Dec 2020 PRP Paul Bourdelais
b = 75
n = 5 8 digits Sep 2000 Prime
n = 83 154 digits Sep 2000 Prime
n = 6211 11645 digits Aug 2007 PRP Henri Lifchitz
b = 76
n = 3 4 digits Sep 2000 Prime
n = 5 8 digits Sep 2000 Prime
n = 191 358 digits Sep 2000 Prime
n = 269 505 digits Sep 2000 Prime
n = 23557 44305 digits Dec 2016 PRP Richard Fischer
n = 165947 312114 digits Jan 2021 PRP Paul Bourdelais
b = 77
n = 37 68 digits Sep 2000 Prime
n = 317 597 digits Sep 2000 Prime
b = 78
n = 3 4 digits Sep 2000 Prime
n = 7 12 digits Sep 2000 Prime
n = 31 57 digits Sep 2000 Prime
n = 661 1249 digits Sep 2000 Prime
n = 4217 7978 digits Sep 2000 PRP
b = 79
n = 3 4 digits Sep 2000 Prime
n = 107 202 digits Sep 2000 Prime
n = 457 866 digits Sep 2000 Prime
n = 491 930 digits Sep 2000 Prime
n = 2011 3815 digits Sep 2000 Prime
n = 379703 720533 digits Oct 2023 PRP Paul Bourdelais
b = 80
n = 5 8 digits Sep 2000 Prime
n = 13 23 digits Sep 2000 Prime
n = 227 431 digits Sep 2000 Prime
n = 439 834 digits Sep 2000 Prime
n = 191953 365302 digits Jan 2021 PRP Paul Bourdelais
n = 192133 365645 digits Jan 2021 PRP Paul Bourdelais
n = 228419 434701 digits Feb 2021 PRP Paul Bourdelais
b = 81
n = 3 4 digits Sep 2000 Prime
n = 5 8 digits Sep 2000 Prime
n = 701 1336 digits Sep 2000 Prime
n = 829 1581 digits Sep 2000 Prime
n = 1031 1966 digits Sep 2000 Prime
n = 1033 1970 digits Sep 2000 Prime
n = 7229 13795 digits Nov 2004 PRP Richard Fischer
n = 19463 37143 digits PRP Richard Fischer
n = 370421 706942 digits Dec 2021 PRP Paul Bourdelais
b = 82
n = 293 559 digits Sep 2000 Prime
n = 1279 2446 digits Sep 2000 Prime
n = 97151 185928 digits Oct 2017 PRP Paul Bourdelais
b = 83
n = 19 35 digits Sep 2000 Prime
n = 31 58 digits Sep 2000 Prime
n = 37 70 digits Sep 2000 Prime
n = 43 81 digits Sep 2000 Prime
n = 421 807 digits Sep 2000 Prime
n = 547 1048 digits Sep 2000 Prime
n = 3037 5827 digits Sep 2000 PRP
n = 8839 16961 digits Aug 2007 PRP Henri Lifchitz
b = 84
n = 7 12 digits Sep 2000 Prime
n = 13 24 digits Sep 2000 Prime
n = 139 266 digits Sep 2000 Prime
n = 359 689 digits Sep 2000 Prime
n = 971 1867 digits Sep 2000 Prime
n = 1087 2090 digits Sep 2000 Prime
n = 3527 6786 digits Sep 2000 PRP
b = 85
n = 167 321 digits Sep 2000 Prime
n = 3533 6815 digits Sep 2000 PRP
n = 48677 93917 digits Aug 2017 PRP Paul Bourdelais
n = 138647 267507 digits Jul 2019 PRP Paul Bourdelais
b = 86
n = 7 12 digits Sep 2000 Prime
n = 17 31 digits Sep 2000 Prime
n = 397 767 digits Sep 2000 Prime
n = 7159 13848 digits Aug 2007 PRP Henri Lifchitz
n = 103471 200163 digits May 2018 PRP Paul Bourdelais
n = 123677 239252 digits Jan 2019 PRP Paul Bourdelais
b = 87
n = 7 12 digits Sep 2000 Prime
n = 467 904 digits Sep 2000 Prime
n = 43189 83764 digits Aug 2017 PRP Paul Bourdelais
b = 88
n = 709 1377 digits Sep 2000 Prime
n = 1373 2668 digits Sep 2000 Prime
n = 61751 120072 digits Sep 2017 PRP Paul Bourdelais
n = 208739 405888 digits Dec 2020 PRP Paul Bourdelais
b = 89
n = 13 24 digits Sep 2000 Prime
n = 59 114 digits Sep 2000 Prime
n = 137 266 digits Sep 2000 Prime
n = 1103 2149 digits Sep 2000 Prime
n = 4423 8621 digits Sep 2000 PRP
n = 82609 161036 digits Oct 2017 PRP Paul Bourdelais
n = 101363 197595 digits Nov 2017 PRP Paul Bourdelais
b = 90
n = 3 4 digits Sep 2000 Prime
n = 47 90 digits Sep 2000 Prime
b = 91
n = 3 4 digits Sep 2000 Prime
n = 11 20 digits Sep 2000 Prime
n = 43 83 digits Sep 2000 Prime
n = 397 776 digits Sep 2000 Prime
n = 21529 42175 digits Oct 2016 PRP Richard Fischer
n = 37507 73476 digits Aug 2017 PRP Paul Bourdelais
n = 61879 121222 digits Sep 2017 PRP Paul Bourdelais
b = 92
n = 37 71 digits Sep 2000 Prime
n = 59 114 digits Sep 2000 Prime
n = 113 220 digits Sep 2000 Prime
b = 93
n = 89 174 digits Sep 2000 Prime
n = 571 1123 digits Sep 2000 Prime
n = 601 1182 digits Sep 2000 Prime
n = 3877 7630 digits Sep 2000 PRP
b = 94
n = 71 139 digits Sep 2000 Prime
n = 307 604 digits Sep 2000 Prime
n = 613 1208 digits Sep 2000 Prime
n = 1787 3525 digits Sep 2000 Prime
n = 3793 7483 digits Sep 2000 PRP
n = 10391 20501 digits Dec 2007 PRP Richard Fischer
b = 95
n = 43 84 digits Sep 2000 Prime
n = 93377 184672 digits Nov 2017 PRP Paul Bourdelais
n = 127583 252322 digits Jul 2019 PRP Paul Bourdelais
b = 96
n = 37 72 digits Sep 2000 Prime
n = 103 203 digits Sep 2000 Prime
n = 131 258 digits Sep 2000 Prime
n = 263 520 digits Sep 2000 Prime
n = 32369 64163 digits Aug 2017 PRP Paul Bourdelais
b = 98
n = 19 36 digits Sep 2000 Prime
n = 101 200 digits Sep 2000 Prime
n = 78797 156901 digits Dec 2017 PRP Paul Bourdelais
n = 114859 228709 digits Dec 2018 PRP Paul Bourdelais
n = 189619 377573 digits Feb 2021 PRP Paul Bourdelais
b = 99
n = 7 12 digits Sep 2000 Prime
n = 37 72 digits Sep 2000 Prime
n = 41 80 digits Sep 2000 Prime
n = 71 140 digits Sep 2000 Prime
n = 357779 713995 digits Feb 2022 PRP Paul Bourdelais
b = 100
n = 3 4 digits Sep 2000 Prime
n = 293 584 digits Sep 2000 Prime
n = 461 920 digits Sep 2000 Prime
n = 11867 23732 digits Sep 2008 Prime Richard Fischer
n = 90089 180176 digits Aug 2017 PRP Paul Bourdelais
b = 101
n = 7 13 digits Sep 2000 Prime
n = 229 457 digits Sep 2000 Prime
n = 91463 183320 digits Nov 2017 PRP Paul Bourdelais
n = 166849 334418 digits Dec 2020 PRP Paul Bourdelais
b = 102
n = 3 5 digits Sep 2000 Prime
b = 104
n = 673 1356 digits Sep 2000 Prime
n = 839 1691 digits Sep 2000 Prime
n = 1031 2078 digits Sep 2000 Prime
n = 24877 50176 digits Feb 2018 PRP Richard Fischer
n = 28201 56881 digits Apr 2018 PRP Richard Fischer
b = 105
n = 11 21 digits Sep 2000 Prime
n = 149 300 digits Sep 2000 Prime
n = 1187 2398 digits Sep 2000 Prime
n = 1627 3287 digits Sep 2000 Prime
b = 106
n = 3 5 digits Sep 2000 Prime
n = 7 13 digits Sep 2000 Prime
n = 19 37 digits Sep 2000 Prime
n = 23 45 digits Sep 2000 Prime
n = 31 61 digits Sep 2000 Prime
n = 3989 8077 digits Sep 2000 PRP
b = 107
n = 103 207 digits Sep 2000 Prime
n = 983 1993 digits Sep 2000 Prime
n = 18049 36627 digits Aug 2015 PRP Richard Fischer
n = 28703 58248 digits May 2018 PRP Richard Fischer
b = 108
n = 13 25 digits Sep 2000 Prime
n = 223 452 digits Sep 2000 Prime
n = 15731 31986 digits Sep 2013 PRP Richard Fischer
b = 109
n = 59 119 digits Sep 2000 Prime
n = 79 159 digits Sep 2000 Prime
n = 811 1651 digits Sep 2000 Prime
b = 110
n = 23 45 digits Sep 2000 Prime
n = 101 205 digits Sep 2000 Prime
n = 17041 34786 digits Jul 2015 PRP Richard Fischer
b = 111
n = 3 5 digits Sep 2000 Prime
n = 5 9 digits Sep 2000 Prime
n = 23 45 digits Sep 2000 Prime
n = 53 107 digits Sep 2000 Prime
n = 383 782 digits Sep 2000 Prime
n = 2039 4169 digits Sep 2000 Prime
n = 12109 24765 digits May 2013 PRP Richard Fischer
b = 112
n = 3 5 digits Sep 2000 Prime
b = 114
n = 7 13 digits Sep 2000 Prime
n = 13 25 digits Sep 2000 Prime
n = 1801 3703 digits Sep 2000 Prime
n = 12487 25683 digits Jun 2013 PRP Richard Fischer
b = 115
n = 7 13 digits Sep 2000 Prime
n = 31 62 digits Sep 2000 Prime
n = 293 602 digits Sep 2000 Prime
b = 116
n = 113 232 digits Sep 2000 Prime
n = 1481 3056 digits Sep 2000 Prime
n = 2089 4311 digits Sep 2000 Prime
n = 16889 34865 digits Nov 2013 PRP Richard Fischer
b = 117
n = 271 559 digits Sep 2000 Prime
b = 118
n = 3 5 digits Sep 2000 Prime
n = 23 46 digits Sep 2000 Prime
n = 109 224 digits Sep 2000 Prime
n = 2357 4882 digits Sep 2000 Prime
b = 119
n = 29 59 digits Sep 2000 Prime
n = 53 108 digits Sep 2000 Prime
n = 797 1653 digits Sep 2000 Prime
n = 11491 23849 digits May 2013 PRP Richard Fischer
b = 120
n = 3 5 digits Sep 2000 Prime
n = 31 63 digits Sep 2000 Prime
n = 43 88 digits Sep 2000 Prime
n = 263 545 digits Sep 2000 Prime
n = 4919 10226 digits Sep 2000 PRP
b = 121
n = 5 9 digits Sep 2000 Prime
n = 13 25 digits Sep 2000 Prime
n = 97 200 digits Sep 2000 Prime
n = 1499 3121 digits Sep 2000 Prime
n = 11321 23578 digits Oct 2008 PRP Richard Fischer
n = 320483 667496 digits Aug 2019 PRP Paul Bourdelais
b = 122
n = 293 610 digits Sep 2000 Prime
n = 3877 8087 digits Sep 2000 PRP
n = 12889 26890 digits Nov 2008 PRP Patrick Schmeer
n = 22277 46476 digits Dec 2016 PRP Richard Fischer
b = 123
n = 29 59 digits Sep 2000 Prime
n = 739 1543 digits Sep 2000 Prime
b = 124
n = 16427 34387 digits Oct 2013 PRP Richard Fischer
b = 126
n = 5 9 digits Sep 2000 Prime
n = 13 26 digits Sep 2000 Prime
n = 47 97 digits Sep 2000 Prime
n = 163 341 digits Sep 2000 Prime
n = 239 500 digits Sep 2000 Prime
n = 4523 9498 digits Sep 2000 PRP
b = 127
n = 317 665 digits Sep 2000 Prime
n = 1061 2231 digits Sep 2000 Prime
n = 23887 50252 digits Apr 2017 PRP Richard Fischer
b = 128
n = 7 13 digits Sep 2000 Prime
b = 129
n = 17 34 digits Sep 2000 Prime
n = 227 477 digits Sep 2000 Prime
n = 1753 3698 digits Sep 2000 Prime
b = 130
n = 467 986 digits Sep 2000 Prime
b = 131
n = 5 9 digits Sep 2000 Prime
n = 101 212 digits Sep 2000 Prime
n = 3389 7174 digits Sep 2000 PRP
n = 3581 7580 digits Sep 2000 PRP
b = 132
n = 3 5 digits Sep 2000 Prime
n = 101 213 digits Sep 2000 Prime
n = 157 331 digits Sep 2000 Prime
n = 1303 2761 digits Sep 2000 Prime
b = 133
n = 5 9 digits Sep 2000 Prime
n = 7 13 digits Sep 2000 Prime
n = 17 34 digits Sep 2000 Prime
n = 59 124 digits Sep 2000 Prime
n = 79 166 digits Sep 2000 Prime
n = 157 332 digits Sep 2000 Prime
b = 134
n = 13 26 digits Sep 2000 Prime
n = 1171 2489 digits Sep 2000 Prime
n = 6733 14320 digits Oct 2008 PRP Patrick Schmeer
b = 135
n = 5 9 digits Sep 2000 Prime
n = 7 13 digits Sep 2000 Prime
n = 2671 5688 digits Sep 2000 Prime
n = 11953 25462 digits Nov 2008 PRP Patrick Schmeer
b = 136
n = 5 9 digits Sep 2000 Prime
n = 7 13 digits Sep 2000 Prime
n = 23 47 digits Sep 2000 Prime
n = 59 124 digits Sep 2000 Prime
n = 199 423 digits Sep 2000 Prime
n = 2053 4379 digits Sep 2000 Prime
n = 6067 12943 digits Oct 2008 PRP Patrick Schmeer
b = 137
n = 101 214 digits Sep 2000 Prime
n = 241 513 digits Sep 2000 Prime
n = 353 753 digits Sep 2000 Prime
n = 1999 4270 digits Sep 2000 Prime
n = 21851 46688 digits Nov 2016 PRP Richard Fischer
b = 138
n = 103 219 digits Sep 2000 Prime
n = 577 1233 digits Sep 2000 Prime
n = 10781 23068 digits May 2013 PRP Richard Fischer
b = 139
n = 3 5 digits Sep 2000 Prime
n = 17 35 digits Sep 2000 Prime
n = 47 99 digits Sep 2000 Prime
n = 2683 5748 digits Sep 2000 Prime
n = 2719 5825 digits Sep 2000 PRP
n = 26437 56653 digits Mar 2018 PRP Richard Fischer
b = 140
n = 59 125 digits Sep 2000 Prime
n = 29819 63994 digits May 2018 PRP Richard Fischer
b = 141
n = 5 9 digits Sep 2000 Prime
n = 1471 3160 digits Sep 2000 Prime
b = 142
n = 3 5 digits Sep 2000 Prime
n = 7537 16220 digits Nov 2008 Prime Patrick Schmeer
b = 143
n = 7 13 digits Sep 2000 Prime
n = 17 35 digits Sep 2000 Prime
n = 19 39 digits Sep 2000 Prime
n = 47 100 digits Sep 2000 Prime
n = 103 220 digits Sep 2000 Prime
n = 4423 9531 digits Sep 2000 PRP
n = 18287 39413 digits Sep 2015 PRP Richard Fischer
b = 144
n = 3 5 digits Sep 2000 Prime
n = 23 48 digits Sep 2000 Prime
n = 41 87 digits Sep 2000 Prime
n = 317 683 digits Sep 2000 Prime
n = 3371 7274 digits Sep 2000 PRP
n = 45259 97684 digits Aug 2019 PRP Paul Bourdelais
n = 119671 258292 digits Aug 2019 PRP Paul Bourdelais
b = 145
n = 7 13 digits Sep 2000 Prime
n = 23 48 digits Sep 2000 Prime
n = 281 606 digits Sep 2000 Prime
n = 24229 52366 digits Feb 2018 PRP Richard Fischer
b = 146
n = 17 35 digits Sep 2000 Prime
n = 1439 3113 digits Sep 2000 Prime
n = 11027 23865 digits Nov 2008 PRP Patrick Schmeer
b = 147
n = 11 22 digits Sep 2000 Prime
n = 151 326 digits Sep 2000 Prime
n = 6599 14300 digits Nov 2008 PRP Patrick Schmeer
b = 148
n = 3 5 digits Sep 2000 Prime
n = 7 14 digits Sep 2000 Prime
n = 31 66 digits Sep 2000 Prime
n = 43 92 digits Sep 2000 Prime
n = 163 352 digits Sep 2000 Prime
n = 317 686 digits Sep 2000 Prime
n = 1933 4193 digits Sep 2000 Prime
n = 5669 12302 digits Sep 2000 PRP
n = 11789 25584 digits Nov 2008 PRP Patrick Schmeer
n = 19289 41861 digits Oct 2015 PRP Richard Fischer
n = 22171 48115 digits Dec 2016 PRP Richard Fischer
b = 149
n = 17 35 digits Sep 2000 Prime
n = 769 1670 digits Sep 2000 Prime
b = 150
n = 6883 14976 digits Nov 2008 Prime Patrick Schmeer
n = 15139 32942 digits Nov 2008 PRP Patrick Schmeer
b = 151
n = 3 5 digits Sep 2000 Prime
n = 367 798 digits Sep 2000 Prime
n = 3203 6978 digits Sep 2000 PRP
n = 7993 17415 digits Feb 2006 PRP Donovan Johnson
n = 10273 22383 digits Nov 2008 PRP Patrick Schmeer
n = 14437 31456 digits PRP Richard Fischer
b = 152
n = 13 27 digits Sep 2000 Prime
n = 19 40 digits Sep 2000 Prime
b = 153
n = 13 27 digits Sep 2000 Prime
n = 1063 2321 digits Sep 2000 Prime
n = 5749 12558 digits Sep 2000 PRP
b = 154
n = 3 5 digits Sep 2000 Prime
n = 29 62 digits Sep 2000 Prime
n = 263 574 digits Sep 2000 Prime
n = 601 1313 digits Sep 2000 Prime
n = 619 1352 digits Sep 2000 Prime
n = 809 1768 digits Sep 2000 Prime
n = 1217 2661 digits Sep 2000 Prime
n = 2267 4957 digits Sep 2000 Prime
b = 155
n = 5 9 digits Sep 2000 Prime
n = 22679 49673 digits Dec 2017 PRP Eric Chen
b = 156
n = 3 5 digits Sep 2000 Prime
n = 1301 2852 digits Sep 2000 Prime
n = 25933 56873 digits Dec 2017 PRP Eric Chen
b = 157
n = 5 9 digits Sep 2000 Prime
n = 157 343 digits Sep 2000 Prime
n = 809 1775 digits Sep 2000 Prime
n = 1861 4085 digits Sep 2000 Prime
n = 2203 4836 digits Sep 2000 Prime
b = 158
n = 5 9 digits Sep 2000 Prime
n = 769 1689 digits Sep 2000 Prime
n = 5023 11042 digits Sep 2000 PRP
b = 159
n = 283 621 digits Sep 2000 Prime
n = 449 987 digits Sep 2000 Prime
n = 1949 4289 digits Sep 2000 Prime
n = 7457 16414 digits Nov 2008 PRP Patrick Schmeer
n = 23369 51443 digits Dec 2017 PRP Eric Chen
n = 29303 64506 digits Dec 2017 PRP Eric Chen
b = 160
n = 11 23 digits Sep 2000 Prime
n = 37 80 digits Sep 2000 Prime
n = 1907 4202 digits Sep 2000 Prime
n = 10487 23113 digits Nov 2008 PRP Patrick Schmeer
b = 161
n = 31 67 digits Sep 2000 Prime
n = 331 729 digits Sep 2000 Prime
n = 1483 3271 digits Sep 2000 Prime
n = 31183 68814 digits Jul 2025 PRP Richard Fischer
b = 162
n = 3 5 digits Sep 2000 Prime
n = 1823 4026 digits Sep 2000 Prime
n = 7703 17018 digits Nov 2008 PRP Patrick Schmeer
n = 15377 33974 digits Jan 2025 PRP
b = 163
n = 3 5 digits Sep 2000 Prime
n = 11 23 digits Sep 2000 Prime
n = 31 67 digits Sep 2000 Prime
n = 661 1461 digits Sep 2000 Prime
n = 1999 4420 digits Sep 2000 Prime
n = 4079 9022 digits Sep 2000 PRP
n = 6917 15300 digits Feb 2006 PRP Donovan Johnson
n = 27427 60672 digits May 2025 PRP Richard Fischer
n = 29759 65831 digits Jun 2025 PRP Richard Fischer
b = 164
n = 7 14 digits Sep 2000 Prime
n = 103 226 digits Sep 2000 Prime
n = 541 1197 digits Sep 2000 Prime
n = 1109 2455 digits Sep 2000 Prime
b = 165
n = 3 5 digits Sep 2000 Prime
n = 5 9 digits Sep 2000 Prime
n = 383 848 digits Sep 2000 Prime
b = 166
n = 17 36 digits Sep 2000 Prime
n = 5437 12069 digits Sep 2000 PRP
n = 14747 32738 digits Jan 2025 PRP
n = 25469 56542 digits Apr 2025 PRP Richard Fischer
b = 167
n = 17 36 digits Sep 2000 Prime
n = 59 129 digits Sep 2000 Prime
n = 1301 2890 digits Sep 2000 Prime
n = 3167 7038 digits Sep 2000 PRP
b = 168
n = 3 5 digits Sep 2000 Prime
n = 31 67 digits Sep 2000 Prime
n = 1741 3873 digits Sep 2000 Prime
n = 2099 4669 digits Sep 2000 Prime
b = 169
n = 3 5 digits Sep 2000 Prime
n = 7 14 digits Sep 2000 Prime
n = 109 241 digits Sep 2000 Prime
n = 21943 48885 digits Nov 2015 PRP Richard Fischer
b = 170
n = 7 14 digits Sep 2000 Prime
b = 171
n = 13 27 digits Sep 2000 Prime
n = 149 331 digits Sep 2000 Prime
n = 257 572 digits Sep 2000 Prime
n = 4967 11090 digits Sep 2000 PRP
b = 172
n = 37 81 digits Sep 2000 Prime
n = 283 631 digits Sep 2000 Prime
n = 647 1445 digits Sep 2000 Prime
n = 4483 10020 digits Sep 2000 PRP
n = 5417 12108 digits Sep 2000 PRP
b = 173
n = 7 14 digits Sep 2000 Prime
n = 59 130 digits Sep 2000 Prime
n = 569 1272 digits Sep 2000 Prime
n = 2647 5922 digits Sep 2000 PRP
b = 174
n = 3 5 digits Sep 2000 Prime
n = 3191 7148 digits Sep 2000 PRP
b = 175
n = 31627 70939 digits Oct 2017 PRP Eric Chen
b = 176
n = 5 9 digits Sep 2000 Prime
n = 31 68 digits Sep 2000 Prime
n = 269 602 digits Sep 2000 Prime
n = 479 1074 digits Sep 2000 Prime
n = 599 1343 digits Sep 2000 Prime
n = 809 1815 digits Sep 2000 Prime
n = 1307 2933 digits Sep 2000 Prime
n = 17707 39760 digits Feb 2025 PRP Richard Fischer
b = 177
n = 3 5 digits Sep 2000 Prime
n = 5 9 digits Sep 2000 Prime
n = 19 41 digits Sep 2000 Prime
n = 419 940 digits Sep 2000 Prime
b = 178
n = 61 136 digits Sep 2000 Prime
n = 167 374 digits Sep 2000 Prime
n = 227 509 digits Sep 2000 Prime
b = 179
n = 827 1861 digits Sep 2000 Prime
n = 5011 11287 digits Sep 2000 PRP
n = 8867 19974 digits Feb 2006 PRP Donovan Johnson
b = 180
n = 5 10 digits Sep 2000 Prime
n = 13 28 digits Sep 2000 Prime
n = 7369 16617 digits Nov 2008 PRP Patrick Schmeer
n = 8101 18268 digits Nov 2008 PRP Patrick Schmeer
b = 181
n = 449 1012 digits Sep 2000 Prime
n = 2687 6065 digits Sep 2000 PRP
n = 4877 11009 digits Sep 2000 PRP
n = 20407 46071 digits Feb 2025 PRP Richard Fischer
b = 182
n = 1487 3359 digits Sep 2000 Prime
n = 8081 18262 digits Nov 2008 PRP Patrick Schmeer
b = 183
n = 11 23 digits Sep 2000 Prime
n = 16363 37019 digits Nov 2008 PRP Patrick Schmeer
b = 184
n = 19 41 digits Sep 2000 Prime
n = 79 177 digits Sep 2000 Prime
n = 149 336 digits Sep 2000 Prime
n = 7283 16493 digits Nov 2008 PRP Patrick Schmeer
b = 185
n = 11 23 digits Sep 2000 Prime
b = 188
n = 22037 50114 digits Sep 2017 PRP Eric Chen
b = 189
n = 3 5 digits Sep 2000 Prime
n = 31 69 digits Sep 2000 Prime
n = 71 160 digits Sep 2000 Prime
n = 8123 18490 digits Nov 2008 PRP Patrick Schmeer
b = 190
n = 3 5 digits Sep 2000 Prime
n = 19 42 digits Sep 2000 Prime
n = 1153 2626 digits Sep 2000 Prime
b = 191
n = 479 1091 digits Sep 2000 Prime
n = 1163 2651 digits Sep 2000 Prime
b = 192
n = 109 247 digits Sep 2000 Prime
n = 197 448 digits Sep 2000 Prime
n = 587 1339 digits Sep 2000 Prime
n = 727 1658 digits Sep 2000 Prime
n = 1997 4558 digits Sep 2000 Prime
n = 2441 5572 digits Sep 2000 PRP
b = 193
n = 3 5 digits Sep 2000 Prime
n = 11 23 digits Sep 2000 Prime
n = 67 151 digits Sep 2000 Prime
n = 3253 7433 digits Sep 2000 PRP
b = 194
n = 19 42 digits Sep 2000 Prime
n = 31 69 digits Sep 2000 Prime
n = 28631 65500 digits May 2025 PRP Richard Fischer
n = 29401 67262 digits Jun 2025 PRP Richard Fischer
b = 195
n = 3 5 digits Sep 2000 Prime
n = 13 28 digits Sep 2000 Prime
n = 19 42 digits Sep 2000 Prime
n = 43 97 digits Sep 2000 Prime
n = 89 202 digits Sep 2000 Prime
n = 1087 2487 digits Sep 2000 Prime
n = 1949 4461 digits Sep 2000 Prime
n = 2939 6729 digits Sep 2000 PRP
b = 196
n = 43 97 digits Sep 2000 Prime
n = 1049 2403 digits Sep 2000 Prime
n = 5441 12470 digits Sep 2000 PRP
n = 18089 41463 digits Jul 2013 PRP Richard Fischer
b = 197
n = 31 69 digits Sep 2000 Prime
n = 37 83 digits Sep 2000 Prime
n = 101 230 digits Sep 2000 Prime
n = 163 372 digits Sep 2000 Prime
b = 198
n = 37 83 digits Sep 2000 Prime
n = 151 345 digits Sep 2000 Prime
n = 937 2150 digits Sep 2000 Prime
b = 199
n = 313 718 digits Sep 2000 Prime
n = 2579 5927 digits Sep 2000 PRP
n = 5387 12382 digits Sep 2000 PRP
b = 200
n = 7 14 digits Sep 2000 Prime
n = 277 636 digits Sep 2000 Prime
b = 204
n = 11329 26164 digits Apr 2013 PRP Pedja Terzic
b = 205
n = 5449 12595 digits Jul 2022 Prime Florian Piesker
b = 210
n = 64793 150462 digits Dec 2025 PRP Henri Lifchitz
b = 211
n = 6659 15476 digits Feb 2006 PRP Donovan Johnson
b = 214
n = 8867 20662 digits Sep 2016 PRP Eric Chen
b = 216
n = 3 5 digits Prime Richard Fischer
b = 223
n = 5923 13907 digits Feb 2006 PRP Donovan Johnson
b = 225
n = 383 899 digits Prime Richard Fischer
n = 1277 3002 digits Prime Richard Fischer
b = 230
n = 25819 60976 digits Feb 2023 PRP Poliagapitos
b = 232
n = 22621 53508 digits Feb 2023 PRP Poliagapitos
b = 235
n = 9137 21663 digits Sep 2016 PRP Eric Chen
b = 237
n = 8677 20604 digits Sep 2016 PRP Eric Chen
b = 239
n = 8867 21087 digits Sep 2016 PRP Eric Chen
b = 241
n = 7507 17880 digits Feb 2006 PRP Donovan Johnson
b = 245
n = 8731 20858 digits Sep 2016 PRP Eric Chen
b = 246
n = 5897 14097 digits Jan 2008 PRP Lelio R Paula
b = 250
n = 22877 54856 digits Feb 2023 PRP Poliagapitos
b = 255
n = 7 15 digits Prime Richard Fischer
n = 59 140 digits Prime Richard Fischer
n = 179 429 digits Prime Richard Fischer
n = 263 631 digits Prime Richard Fischer
n = 4283 10305 digits Jan 2008 PRP Lelio R Paula
n = 15527 37364 digits Apr 2016 PRP Richard Fischer
b = 256
n = 5 10 digits Prime Richard Fischer
n = 13 29 digits Prime Richard Fischer
n = 23029 55457 digits Mar 2005 PRP Donovan Johnson
n = 50627 121920 digits Apr 2014 PRP Lelio R Paula
n = 51479 123972 digits May 2014 PRP Lelio R Paula
n = 72337 174203 digits Sep 2015 PRP Lelio R Paula
b = 257
n = 5 10 digits Prime Richard Fischer
n = 47 111 digits Prime Richard Fischer
n = 2909 7009 digits PRP Richard Fischer
n = 8747 21078 digits Oct 2015 PRP Richard Fischer
n = 25537 61541 digits Apr 2018 PRP Richard Fischer
b = 259
n = 5107 12323 digits Jan 2008 PRP Lelio R Paula
b = 260
n = 4967 11993 digits Jan 2008 PRP Lelio R Paula
b = 262
n = 21683 52434 digits Feb 2023 PRP Poliagapitos
b = 280
n = 20929 51215 digits Feb 2023 PRP Poliagapitos
b = 284
n = 9203 22576 digits Aug 2016 PRP Eric Chen
b = 289
n = 3 5 digits Prime Richard Fischer
n = 179 439 digits Prime Richard Fischer
n = 181 443 digits Prime Richard Fischer
n = 683 1679 digits Prime
b = 290
n = 4447 10948 digits Jan 2008 PRP Lelio R Paula
b = 296
n = 4451 10998 digits Jan 2008 PRP Lelio R Paula
b = 298
n = 4969 12292 digits Jan 2008 PRP Lelio R Paula
n = 5623 13911 digits Jan 2008 PRP Lelio R Paula
n = 9173 22694 digits May 2008 PRP Lelio R Paula
b = 305
n = 4751 11801 digits Jan 2008 PRP Lelio R Paula
b = 311
n = 2707 6746 digits Jul 2022 Prime Florian Piesker
b = 313
n = 4451 11106 digits Feb 2006 Prime Donovan Johnson
b = 316
n = 48539 121330 digits Oct 2017 PRP Eric Chen
b = 317
n = 4271 10680 digits Feb 2006 PRP Donovan Johnson
b = 318
n = 6733 16847 digits Jul 2022 Prime Florian Piesker
n = 8807 22037 digits Aug 2016 PRP Eric Chen
b = 320
n = 20773 52037 digits Feb 2023 PRP Poliagapitos
b = 331
n = 23879 60169 digits Mar 2023 PRP Poliagapitos
b = 338
n = 24061 60846 digits Mar 2023 PRP Poliagapitos
b = 340
n = 7001 17721 digits Jul 2022 Prime Florian Piesker
b = 343
n = 3 6 digits Prime Richard Fischer
b = 345
n = 22469 57020 digits Jan 2023 PRP Platon Sovilj
b = 347
n = 5297 13454 digits Feb 2006 PRP Donovan Johnson
b = 353
n = 11731 29886 digits Apr 2013 PRP Pedja Terzic
b = 356
n = 7937 20249 digits Nov 2015 Prime Eric Chen
b = 359
n = 7 16 digits Prime Richard Fischer
n = 17 41 digits Prime Richard Fischer
n = 59 149 digits Prime Richard Fischer
b = 360
n = 41 103 digits Prime Richard Fischer
n = 43 108 digits Prime Richard Fischer
n = 167 425 digits Prime Richard Fischer
n = 1987 5077 digits Prime Richard Fischer
b = 361
n = 5 11 digits Prime Richard Fischer
n = 23 57 digits Prime Richard Fischer
n = 223 568 digits Prime Richard Fischer
n = 4441 11356 digits Apr 2013 PRP Richard Fischer
b = 362
n = 24077 61604 digits Mar 2023 PRP Poliagapitos
b = 365
n = 25579 65539 digits Oct 2017 PRP Eric Chen
b = 369
n = 20983 53862 digits Feb 2023 PRP Poliagapitos
b = 373
n = 24007 61737 digits Oct 2017 PRP Eric Chen
b = 379
n = 6047 15591 digits Feb 2006 PRP Donovan Johnson
b = 381
n = 6659 17184 digits Jul 2022 Prime Florian Piesker
b = 389
n = 4447 11515 digits Feb 2006 PRP Donovan Johnson
b = 390
n = 2521 6530 digits Aug 2002 Prime Broadhurst & Water
b = 400
n = 263 682 digits Prime Richard Fischer
b = 401
n = 7 16 digits Prime Richard Fischer
n = 41 105 digits Prime Richard Fischer
n = 227 589 digits Prime Richard Fischer
b = 403
n = 4877 12704 digits Dec 2007 PRP Lelio R Paula
b = 417
n = 3967 10392 digits Jan 2008 PRP Lelio R Paula
b = 421
n = 5101 13384 digits Feb 2006 Prime Donovan Johnson
n = 6983 18323 digits Feb 2006 PRP Donovan Johnson
b = 423
n = 2417 6346 digits Jun 2022 Prime Florian Piesker
n = 4259 11183 digits Jan 2008 PRP Lelio R Paula
n = 22637 59450 digits Feb 2023 PRP Poliagapitos
b = 427
n = 4877 12826 digits Jan 2008 PRP Lelio R Paula
b = 434
n = 16573 43709 digits Dec 2017 PRP Eric Chen
b = 437
n = 4177 11027 digits Jan 2008 PRP Lelio R Paula
b = 438
n = 4973 13134 digits Jan 2008 PRP Lelio R Paula
b = 441
n = 101 265 digits Prime Richard Fischer
n = 197 519 digits Prime Richard Fischer
b = 445
n = 39667 105050 digits May 2024 PRP Jinyuan Wang
n = 49433 130914 digits May 2024 PRP Jinyuan Wang
b = 447
n = 5903 15643 digits Jan 2008 PRP Lelio R Paula
b = 454
n = 5813 15443 digits Jan 2008 PRP Lelio R Paula
b = 477
n = 21019 56298 digits Feb 2023 PRP Poliagapitos
b = 478
n = 11177 29946 digits Apr 2013 PRP Pedja Terzic
b = 479
n = 4079 10931 digits Feb 2006 Prime Donovan Johnson
b = 484
n = 257 688 digits Prime Richard Fischer
b = 496
n = 3 6 digits Prime Richard Fischer
n = 787 2119 digits Prime Richard Fischer
n = 9059 24416 digits PRP Richard Fischer
b = 498
n = 34847 93988 digits May 2024 PRP Jinyuan Wang
b = 502
n = 9431 25468 digits Apr 2013 PRP Pedja Terzic
b = 503
n = 7243 19565 digits Feb 2006 PRP Donovan Johnson
b = 504
n = 5059 13669 digits Jul 2022 Prime Florian Piesker
b = 517
n = 19417 52686 digits Jun 2024 PRP Pedja Terzic
b = 521
n = 5107 13873 digits Feb 2006 PRP Donovan Johnson
b = 529
n = 587 1596 digits Prime
n = 683 1858 digits Prime
n = 25693 69972 digits Dec 2017 PRP Richard Fischer
b = 530
n = 11087 30202 digits Jul 2018 PRP Eric Chen
b = 540
n = 19793 54080 digits Jun 2024 PRP Pedja Terzic
b = 541
n = 4691 12819 digits Feb 2006 PRP Donovan Johnson
b = 543
n = 18371 50239 digits Jun 2024 PRP Pedja Terzic
b = 545
n = 12347 33784 digits Jul 2018 PRP Eric Chen
b = 547
n = 7333 20075 digits Feb 2006 PRP Donovan Johnson
b = 557
n = 27541 75621 digits May 2024 PRP Jinyuan Wang
b = 560
n = 15073 41421 digits Aug 2018 PRP Eric Chen
b = 561
n = 23629 64953 digits Dec 2025 PRP Henri Lifchitz
b = 576
n = 379 1044 digits Prime
n = 461 1270 digits Prime
n = 1861 5135 digits Prime
n = 28307 78137 digits Jan 2018 PRP Richard Fischer
b = 592
n = 21821 60493 digits May 2024 PRP Jinyuan Wang
b = 596
n = 12763 35418 digits Jul 2018 PRP Eric Chen
b = 598
n = 32077 89066 digits May 2024 PRP Jinyuan Wang
b = 601
n = 4889 13584 digits Feb 2006 PRP Donovan Johnson
b = 602
n = 9941 27630 digits Apr 2013 PRP Pedja Terzic
b = 603
n = 9439 26241 digits Apr 2013 PRP Pedja Terzic
b = 619
n = 19069 53232 digits Jun 2024 PRP Pedja Terzic
b = 622
n = 17923 50071 digits Jun 2024 PRP Pedja Terzic
b = 624
n = 18043 50431 digits May 2024 PRP Jinyuan Wang
b = 625
n = 3 6 digits Prime Richard Fischer
n = 7 17 digits Prime Richard Fischer
n = 11 28 digits Prime Richard Fischer
n = 31 84 digits Prime Richard Fischer
n = 67 185 digits Prime Richard Fischer
n = 9173 25644 digits PRP Richard Fischer
n = 17737 49588 digits Jun 2013 PRP Richard Fischer
n = 26267 73437 digits Dec 2017 PRP Richard Fischer
b = 632
n = 18947 53063 digits Jun 2024 PRP Pedja Terzic
b = 641
n = 6197 17392 digits Feb 2006 PRP Donovan Johnson
b = 642
n = 2161 6065 digits Dec 2003 Prime Broadhurst & Water
b = 647
n = 6791 19087 digits Feb 2006 PRP Donovan Johnson
b = 648
n = 19207 54000 digits Jun 2024 PRP Pedja Terzic
b = 654
n = 9679 27250 digits Apr 2013 PRP Pedja Terzic
b = 660
n = 9857 27790 digits Apr 2013 PRP Pedja Terzic
b = 673
n = 4691 13264 digits Feb 2006 PRP Donovan Johnson
n = 19211 54327 digits Jun 2024 PRP Pedja Terzic
b = 681
n = 18713 53014 digits Jun 2024 PRP Pedja Terzic
n = 18803 53269 digits Jun 2024 PRP Pedja Terzic
b = 691
n = 4493 12755 digits Feb 2006 PRP Donovan Johnson
b = 701
n = 12577 35788 digits Jul 2018 PRP Eric Chen
b = 706
n = 10657 30357 digits Jul 2018 PRP Eric Chen
b = 717
n = 30161 86123 digits May 2024 PRP Jinyuan Wang
b = 720
n = 18047 51564 digits Jun 2024 PRP Pedja Terzic
b = 728
n = 18049 51656 digits Jun 2024 PRP Pedja Terzic
b = 729
n = 3 6 digits Prime Richard Fischer
b = 730
n = 26297 75294 digits May 2024 PRP Jinyuan Wang
b = 769
n = 6211 17922 digits Feb 2006 PRP Donovan Johnson
b = 797
n = 4271 12390 digits Feb 2006 PRP Donovan Johnson
b = 821
n = 13537 39449 digits Jul 2018 PRP Eric Chen
b = 832
n = 18541 54140 digits Jul 2024 PRP Pedja Terzic
b = 833
n = 17117 49990 digits Sep 2018 PRP Eric Chen
b = 841
n = 29 82 digits Prime Richard Fischer
b = 873
n = 41263 121353 digits Dec 2024 PRP Jinyuan Wang
b = 887
n = 5867 17293 digits Feb 2006 PRP Donovan Johnson
b = 923
n = 21683 64292 digits Jun 2024 PRP Jinyuan Wang
b = 933
n = 17683 52514 digits Jul 2024 PRP Pedja Terzic
b = 944
n = 39157 116489 digits Dec 2024 PRP Jinyuan Wang
b = 953
n = 4091 12185 digits Feb 2006 PRP Donovan Johnson
b = 966
n = 14821 44238 digits Aug 2018 PRP Eric Chen
b = 983
n = 11273 33733 digits Jul 2018 PRP Eric Chen
b = 996
n = 36527 109515 digits Dec 2024 PRP Jinyuan Wang
b = 1004
n = 25121 75404 digits Jun 2024 PRP Jinyuan Wang
b = 1006
n = 4673 14029 digits Dec 2007 PRP Lelio R Paula
b = 1009
n = 16693 50141 digits Oct 2024 PRP Pedja Terzic
b = 1032
n = 17569 52945 digits Oct 2024 PRP Pedja Terzic
b = 1050
n = 17707 53494 digits Oct 2024 PRP Pedja Terzic
b = 1065
n = 8311 25158 digits Nov 2018 Prime Propper & Batalov
b = 1067
n = 2521 7631 digits Jan 2004 PRP Broadhurst & Water
b = 1084
n = 16607 50400 digits Nov 2024 PRP Pedja Terzic
b = 1085
n = 17789 53995 digits Nov 2024 PRP Pedja Terzic
b = 1093
n = 17203 52271 digits Nov 2024 PRP Pedja Terzic
b = 1132
n = 17293 52808 digits Nov 2024 PRP Pedja Terzic
b = 1209
n = 17707 54578 digits May 2025 PRP Pedja Terzic
b = 1232
n = 16561 51181 digits Jun 2025 PRP Pedja Terzic
b = 1250
n = 16369 50691 digits Jun 2025 PRP Pedja Terzic
b = 1296
n = 3 7 digits Prime Richard Fischer
n = 2153 6699 digits PRP Richard Fischer
n = 3517 10944 digits Dec 2007 PRP Richard Fischer
b = 1297
n = 311 966 digits Prime Richard Fischer
n = 3833 11929 digits PRP Richard Fischer
b = 1316
n = 17011 53059 digits Sep 2025 PRP Pedja Terzic
b = 1383
n = 16007 50272 digits Dec 2025 PRP Pedja Terzic
b = 1407
n = 16921 53270 digits Dec 2025 PRP Pedja Terzic
b = 1415
n = 16871 53154 digits Dec 2025 PRP Pedja Terzic
b = 1484
n = 17207 54568 digits Apr 2026 PRP Pedja Terzic
b = 1486
n = 16111 51102 digits May 2026 PRP Pedja Terzic
b = 1507
n = 2521 8009 digits Jan 2004 Prime Broadhurst & Water
b = 1681
n = 41 130 digits Prime Richard Fischer
b = 1849
n = 43 138 digits Prime Richard Fischer
b = 2003
n = 5021 16575 digits May 2007 PRP Faysal YAtim
b = 2025
n = 5 14 digits Prime Richard Fischer
n = 3559 11765 digits PRP Richard Fischer
b = 2401
n = 37 122 digits Prime Richard Fischer
n = 3583 12109 digits Dec 2007 PRP Richard Fischer
n = 8059 27240 digits PRP Richard Fischer
b = 2656
n = 2521 8630 digits Jan 2004 PRP Broadhurst & Water
b = 2730
n = 1801 6186 digits Nov 2003 Prime Broadhurst & Water
b = 2916
n = 4483 15530 digits May 2008 PRP Lelio R Paula
n = 4751 16458 digits May 2008 PRP Lelio R Paula
b = 2988
n = 1801 6256 digits Nov 2003 PRP Broadhurst & Water
b = 3721
n = 61 215 digits Prime Richard Fischer
b = 3833
n = 2957 10593 digits Feb 2006 PRP Donovan Johnson
b = 4426
n = 42337 154358 digits Dec 2025 PRP Henri Lifchitz
b = 4606
n = 2731 10001 digits Apr 2026 Prime Michael Porter
b = 5169
n = 2521 9358 digits Feb 2004 PRP Broadhurst & Water
b = 5769
n = 4591 17264 digits Nov 2018 PRP Serge Batalov
b = 5798
n = 4201 15806 digits Nov 2018 PRP Chen Wang
b = 6011
n = 4547 17180 digits May 2007 PRP Faysal YAtim
b = 6561
n = 19 69 digits Prime Richard Fischer
n = 29 107 digits Prime Richard Fischer
n = 11213 42796 digits PRP Richard Fischer
b = 6724
n = 461 1761 digits Jul 1996 Prime Harvey Dubner; Richard Brent; Dubner Cruncher
b = 7458
n = 1321 5112 digits Nov 2020 Prime
b = 7510
n = 1549 6000 digits May 2023 Prime
b = 7513
n = 3361 13023 digits Mar 2004 PRP Broadhurst & Water
b = 7538
n = 3361 13028 digits Mar 2007 PRP Broadhurst & Water & Renze
b = 7777
n = 677 2631 digits Prime Richard Fischer
b = 8128
n = 5 16 digits Prime Richard Fischer
n = 71 274 digits Prime Richard Fischer
n = 709 2769 digits Prime Richard Fischer
b = 8860
n = 2521 9948 digits Jan 2004 PRP Broadhurst & Water
b = 10000
n = 283 1128 digits Prime Richard Fischer
n = 1087 4344 digits Prime Richard Fischer
b = 11195
n = 3361 13605 digits Jan 2004 Prime Broadhurst & Water
b = 12925
n = 3499 14382 digits Feb 2005 PRP Broadhurst & Water
b = 13085
n = 6151 25319 digits Nov 2018 Prime Serge Batalov
b = 13778
n = 2417 10001 digits Apr 2026 Prime Michael Porter
b = 14641
n = 211 875 digits Prime Richard Fischer
b = 20029
n = 4027 17319 digits May 2007 PRP Faysal YAtim
b = 20063
n = 7159 30797 digits May 2007 PRP Faysal YAtim
b = 20736
n = 593 2556 digits Prime Richard Fischer
b = 22466
n = 4493 19548 digits Jun 2026 Prime Michael Porter
b = 24736
n = 4621 20298 digits Nov 2018 PRP Serge Batalov
b = 33223
n = 2377 10743 digits Feb 2006 PRP Donovan Johnson
b = 33287
n = 2267 10248 digits Feb 2006 PRP Donovan Johnson
b = 33377
n = 2311 10450 digits Feb 2006 PRP Donovan Johnson
b = 33533
n = 2239 10129 digits Feb 2006 PRP Donovan Johnson
b = 33637
n = 2309 10448 digits Feb 2006 PRP Donovan Johnson
b = 33811
n = 2447 11079 digits Feb 2006 PRP Donovan Johnson
b = 33829
n = 2351 10644 digits Feb 2006 PRP Donovan Johnson
b = 50023
n = 7583 35630 digits Jun 2007 PRP Faysal YAtim
b = 65536
n = 239 1147 digits Prime Richard Fischer
b = 80051
n = 10567 51809 digits Jul 2007 PRP Faysal YAtim