Primoproth Co-ordinated Search

Primes found to date for p#.2^n - 1
p#
Complete to n =
Total prime
Prime for n =
499#
20000
47
5 425 544 548 576 609 943 996 1021 1030 1226 1250 1281 1316 1325 1506 1590 1719 1842 2085 2165 2457 2690 2822 3391 3493 3763 3854 4792 4941 4983 5022 6558 6747 6981 7351 9111 9867 10559 11610 13291 13436 14491 15004 15365 17004 19529
503#
20000
68
84 105 174 284 290 334 411 560 574 588 814 956 998 1021 1157 1182 1187 1237 1325 1398 1445 1496 1671 1730 1739 1786 1790 1888 2048 2079 2286 2505 2971 3078 3152 3159 3531 3570 3684 4542 4641 4661 4729 4784 4978 5573 5609 5709 5742 6193 7171 7291 7603 8685 10303 11539 11769 12649 14098 14350 14509 14879 15151 15604 17674 18417 18453 19560
509#
58800
90
9 54 55 70 144 189 199 229 240 326 385 444 480 498 524 527 686 700 780 840 1026 1051 1213 1323 1504 1829 1869 2031 2419 2504 2515 2517 3146 3284 3324 3376 3377 3765 3970 4004 4135 4848 4948 4998 5269 5467 5733 5775 5880 5904 5932 6518 7108 7240 7419 7448 7510 7642 7867 8224 8530 9151 9433 9746 11178 11721 12209 14143 15379 15521 16579 17153 20930 21854 22506 22810 24523 25428 27243 27665 28199 31966 33172 33425 35868 37231 44004 53613 54357 54665

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Last updated 27 June 2002