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Proth and Riesel Primes
TheCount's probability page.
Riesel 1k's
Base | CK | List of Remaining k |
Tested N | Mininum Decimal Length |
n per 25000 at 1e12 |
Next Test Range End | Chance Prime |
10 | 10176 | 4421 | 910K | 910001 | 318 | 1010000 | 2.56% |
22 | 4461 | 3656 | 1M | 1342423 | 470 | 1100000 | 2.65% |
133 | 3684 | 926 | 250K | 530963 | 858 | 350000 | 11.00% |
121 | 3294 | 2622 | 250K | 520697 | 480 | 350000 | 6.53% |
253 | 1904 | 1854 | 400K | 961249 | 873 | 500000 | 6.93% |
103 | 1158 | 924 | 250K | 503210 | 806 | 350000 | 10.78% |
736 | 870 | 560 | 150K | 430032 | 678 | 250000 | 10.28% |
27 | 804 | 706 | 1M | 1431364 | 461 | 1100000 | 2.28% |
610 | 753 | 234 | 200K | 557066 | 293 | 300000 | 3.47% |
100 | 750 | 653 | 250K | 500001 | 543 | 350000 | 7.19% |
505 | 714 | 68 | 200K | 540659 | 1021 | 300000 | 11.71% |
496 | 638 | 57 | 200K | 539097 | 937 | 300000 | 10.68% |
93 | 612 | 424 | 250K | 492121 | 766 | 350000 | 10.07% |
213 | 534 | 294 | 200K | 465676 | 1318 | 300000 | 18.03% |
159 | 516 | 172 | 250K | 550350 | 388 | 350000 | 4.49% |
333 | 502 | 16 | 250K | 630612 | 780 | 350000 | 7.28% |
23 | 476 | 404 | 1M | 1361728 | 300 | 1100000 | 1.51% |
967 | 408 | 242 | 200K | 597086 | 903 | 300000 | 10.20% |
163 | 372 | 254 | 250K | 553047 | 513 | 350000 | 6.02% |
850 | 369 | 221 | 200K | 585884 | 807 | 300000 | 9.20% |
883 | 324 | 194 | 250K | 736491 | 517 | 350000 | 4.84% |
181 | 300 | 168 | 250K | 564420 | 995 | 350000 | 11.28% |
72 | 293 | 4 | 625K | 1160833 | 471 | 725000 | 2.25% |
177 | 268 | 64 | 250K | 561994 | 595 | 350000 | 6.47% |
727 | 246 | 8 | 250K | 715384 | 638 | 350000 | 5.27% |
790 | 225 | 48 | 200K | 579526 | 805 | 300000 | 8.65% |
619 | 216 | 6 | 200K | 558339 | 832 | 300000 | 8.31% |
573 | 204 | 6 | 200K | 551631 | 683 | 300000 | 6.87% |
504 | 201 | 94 | 200K | 540487 | 688 | 300000 | 8.01% |
679 | 186 | 174 | 200K | 566374 | 726 | 300000 | 8.39% |
160 | 183 | 116 | 250K | 551030 | 456 | 350000 | 5.17% |
958 | 174 | 8 | 200K | 596274 | 266 | 300000 | 2.58% |
730 | 171 | 170 | 200K | 572665 | 1127 | 300000 | 12.92% |
493 | 170 | 92 | 200K | 538570 | 701 | 300000 | 8.17% |
470 | 158 | 137 | 200K | 534420 | 650 | 300000 | 7.76% |
123 | 154 | 24 | 250K | 522477 | 1520 | 350000 | 16.63% |
26 | 149 | 115 | 500K | 707487 | 478 | 600000 | 4.19% |
109 | 144 | 84 | 250K | 509357 | 976 | 350000 | 11.58% |
318 | 144 | 122 | 525K | 1313775 | 157 | 625000 | 0.84% |
354 | 141 | 71 | 200K | 509801 | 732 | 300000 | 8.78% |
833 | 140 | 104 | 200K | 584130 | 447 | 300000 | 4.94% |
416 | 140 | 55 | 200K | 523819 | 597 | 300000 | 6.94% |
523 | 132 | 126 | 200K | 543701 | 1060 | 300000 | 12.45% |
761 | 128 | 8 | 200K | 576277 | 771 | 300000 | 7.64% |
611 | 118 | 10 | 200K | 557209 | 803 | 300000 | 8.23% |
688 | 105 | 9 | 200K | 567518 | 400 | 300000 | 4.03% |
514 | 104 | 30 | 200K | 542193 | 1518 | 300000 | 16.73% |
1029 | 104 | 26 | 700K | 2108691 | 813 | 800000 | 2.72% |
581 | 98 | 2 | 200K | 552836 | 1140 | 300000 | 10.82% |
867 | 92 | 8 | 200K | 587604 | 283 | 300000 | 2.77% |
402 | 92 | 32 | 200K | 520846 | 558 | 300000 | 6.35% |
433 | 92 | 6 | 200K | 527298 | 575 | 300000 | 5.97% |
622 | 90 | 78 | 200K | 558759 | 525 | 300000 | 5.92% |
533 | 88 | 74 | 200K | 545346 | 410 | 300000 | 4.69% |
800 | 88 | 8 | 250K | 725773 | 985 | 350000 | 8.06% |
492 | 86 | 81 | 200K | 538394 | 962 | 300000 | 11.15% |
236 | 80 | 78 | 200K | 474583 | 588 | 300000 | 7.46% |
702 | 75 | 32 | 200K | 569268 | 1295 | 300000 | 13.83% |
373 | 74 | 18 | 200K | 514342 | 287 | 300000 | 3.20% |
875 | 74 | 38 | 200K | 588402 | 1122 | 300000 | 11.81% |
425 | 70 | 64 | 200K | 525678 | 566 | 300000 | 6.61% |
412 | 69 | 6 | 200K | 522980 | 561 | 300000 | 5.86% |
401 | 68 | 38 | 200K | 520629 | 568 | 300000 | 6.51% |
334 | 66 | 14 | 200K | 504750 | 715 | 300000 | 7.99% |
182 | 62 | 43 | 250K | 565018 | 437 | 350000 | 4.64% |
731 | 62 | 34 | 200K | 572784 | 840 | 300000 | 8.96% |
759 | 56 | 34 | 200K | 576049 | 986 | 300000 | 10.48% |
582 | 54 | 52 | 200K | 552985 | 661 | 300000 | 7.37% |
900 | 52 | 22 | 250K | 738561 | 1185 | 350000 | 10.06% |
951 | 50 | 34 | 200K | 595637 | 1157 | 300000 | 12.01% |
832 | 50 | 35 | 200K | 584025 | 1278 | 300000 | 13.47% |
328 | 48 | 8 | 200K | 503175 | 481 | 300000 | 5.23% |
234 | 46 | 6 | 200K | 473844 | 802 | 300000 | 8.97% |
563 | 46 | 28 | 200K | 550102 | 627 | 300000 | 6.82% |
684 | 46 | 39 | 200K | 567012 | 971 | 300000 | 10.50% |
773 | 44 | 38 | 200K | 577636 | 823 | 300000 | 8.77% |
214 | 44 | 11 | 500K | 1165207 | 550 | 600000 | 2.89% |
368 | 40 | 36 | 200K | 513170 | 461 | 300000 | 5.33% |
94 | 39 | 29 | 250K | 493282 | 645 | 350000 | 7.44% |
665 | 38 | 8 | 200K | 564565 | 506 | 300000 | 5.09% |
221 | 38 | 32 | 200K | 468879 | 770 | 300000 | 9.45% |
332 | 38 | 18 | 200K | 504228 | 1407 | 300000 | 15.93% |
258 | 36 | 6 | 200K | 482324 | 851 | 300000 | 9.40% |
879 | 34 | 24 | 200K | 588798 | 1130 | 300000 | 11.64% |
549 | 34 | 6 | 200K | 547915 | 347 | 300000 | 3.51% |
743 | 32 | 14 | 200K | 574198 | 432 | 300000 | 4.41% |
836 | 32 | 8 | 200K | 584442 | 866 | 300000 | 8.50% |
782 | 28 | 14 | 200K | 578642 | 536 | 300000 | 5.45% |
695 | 28 | 26 | 200K | 568397 | 771 | 300000 | 8.17% |
347 | 28 | 22 | 200K | 508066 | 221 | 300000 | 2.51% |
173 | 28 | 22 | 250K | 559512 | 592 | 350000 | 6.13% |
636 | 27 | 9 | 200K | 560692 | 1052 | 300000 | 10.69% |
620 | 22 | 20 | 100K | 279240 | 1007 | 200000 | 18.23% |
551 | 22 | 10 | 200K | 548231 | 632 | 300000 | 6.55% |
321 | 22 | 8 | 200K | 501302 | 480 | 300000 | 5.24% |
275 | 22 | 4 | 200K | 487867 | 888 | 300000 | 9.52% |
1025 | 20 | 8 | 1M | 3010724 | 640 | 1100000 | 1.45% |
968 | 16 | 4 | 250K | 746469 | 576 | 350000 | 4.47% |
815 | 16 | 8 | 200K | 582232 | 1188 | 300000 | 11.70% |
458 | 16 | 11 | 400K | 1064347 | 175 | 500000 | 1.02% |
152 | 16 | 14 | 250K | 545461 | 467 | 350000 | 4.81% |
668 | 14 | 11 | 200K | 564956 | 542 | 300000 | 5.53% |
662 | 14 | 7 | 200K | 564172 | 352 | 300000 | 3.52% |
233 | 14 | 10 | 200K | 473472 | 1087 | 300000 | 12.49% |
812 | 13 | 4 | 200K | 581912 | 610 | 300000 | 5.80% |
548 | 13 | 7 | 200K | 547757 | 770 | 300000 | 7.85% |
650 | 8 | 4 | 200K | 562583 | 642 | 300000 | 6.25% |
398 | 8 | 7 | 200K | 519977 | 442 | 300000 | 4.67% |
1019 | 4 | 2 | 200K | 601635 | 802 | 300000 | 7.20% |
Max | 18.03% |
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