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Proth and Riesel Primes
TheCount's probability page.
Sierpinski 2k's
Base | CK | List of Remaining k |
Tested N | Mininum Decimal Length |
n per 25000 at 1e12 |
Next Test Range End | k1 Chance Prime | k2 Chance Prime | All k Chance any Prime | Chance find all Primes |
2 even-n | 66741 | 23451, 60849 | 2.614M | 786893 | 331 | 2714000 | 1.54% | 1.74% | 3.25% | 0.03% |
22 | 6694 | 1611, 5128 | 500K | 671212 | 653 | 600000 | 3.67% | 3.30% | 6.84% | 0.12% |
75 | 4086 | 1312, 2564 | 250K | 468766 | 441 | 350000 | 1.98% | 4.49% | 6.38% | 0.09% |
49 | 2944 | 1414, 1456 | 600K | 1014118 | 636 | 700000 | 2.21% | 2.37% | 4.53% | 0.05% |
463 | 1188 | 616, 1072 | 200K | 533117 | 907 | 300000 | 5.96% | 5.74% | 11.36% | 0.34% |
520 | 1006 | 369, 373 | 100K | 271601 | 1981 | 200000 | 20.28% | 21.42% | 37.35% | 4.34% |
30 | 867 | 278, 588 | 500K | 738561 | 846 | 600000 | 4.72% | 2.85% | 7.44% | 0.13% |
805 | 714 | 340, 588 | 100K | 290580 | 2248 | 200000 | 31.86% | 13.32% | 40.94% | 4.24% |
859 | 474 | 136, 250 | 100K | 293400 | 2577 | 200000 | 7.03% | 43.22% | 47.21% | 3.04% |
835 | 474 | 94, 276 | 100K | 292169 | 1737 | 200000 | 16.16% | 17.32% | 30.68% | 2.80% |
883 | 324 | 66, 154 | 100K | 294597 | 1322 | 200000 | 14.28% | 10.47% | 23.25% | 1.49% |
340 | 309 | 199, 210 | 100K | 253148 | 1823 | 200000 | 14.95% | 24.47% | 35.76% | 3.66% |
365 | 304 | 2, 176 | 200K | 512459 | 2673 | 300000 | 8.00% | 23.30% | 29.44% | 1.86% |
766 | 235 | 58, 222 | 100K | 288423 | 1468 | 200000 | 15.13% | 12.91% | 26.09% | 1.95% |
686 | 230 | 116, 130 | 100K | 283633 | 2481 | 200000 | 15.33% | 32.97% | 43.25% | 5.05% |
26 | 221 | 65, 155 | 440K | 622589 | 976 | 540000 | 4.14% | 5.42% | 9.34% | 0.22% |
510 | 218 | 57, 195 | 100K | 270758 | 1726 | 200000 | 12.53% | 22.19% | 31.94% | 2.78% |
447 | 204 | 86, 148 | 100K | 265031 | 1543 | 200000 | 9.30% | 22.27% | 29.49% | 2.07% |
298 | 183 | 66, 168 | 200K | 494844 | 981 | 300000 | 3.31% | 9.05% | 12.06% | 0.30% |
444 | 179 | 46, 111 | 250K | 661846 | 1641 | 350000 | 5.12% | 10.88% | 15.44% | 0.56% |
214 | 171 | 87, 106 | 200K | 466083 | 1958 | 300000 | 10.22% | 15.26% | 23.91% | 1.56% |
394 | 159 | 129, 136 | 100K | 259550 | 1035 | 200000 | 9.17% | 12.37% | 20.41% | 1.13% |
753 | 144 | 12, 96 | 100K | 287680 | 1216 | 200000 | 7.35% | 15.07% | 21.32% | 1.11% |
318 | 144 | 56, 89 | 200K | 500486 | 1052 | 300000 | 5.95% | 6.85% | 12.39% | 0.41% |
311 | 142 | 10, 76 | 100K | 249277 | 1445 | 200000 | 14.49% | 14.21% | 26.64% | 2.06% |
833 | 140 | 32, 106 | 100K | 292065 | 1053 | 200000 | 6.21% | 13.39% | 18.77% | 0.83% |
821 | 136 | 80, 82 | 100K | 291435 | 1083 | 200000 | 10.32% | 9.98% | 19.27% | 1.03% |
107 | 122 | 38, 68 | 250K | 507346 | 367 | 350000 | 1.82% | 2.46% | 4.23% | 0.04% |
326 | 110 | 5, 17 | 100K | 251322 | 1642 | 200000 | 10.20% | 20.91% | 28.98% | 2.13% |
534 | 106 | 34, 104 | 100K | 272755 | 1050 | 200000 | 11.56% | 8.69% | 19.24% | 1.00% |
800 | 88 | 61, 82 | 250K | 725773 | 1248 | 350000 | 3.64% | 7.71% | 11.06% | 0.28% |
533 | 88 | 38, 64 | 100K | 272673 | 1740 | 200000 | 17.71% | 15.67% | 30.61% | 2.78% |
472 | 87 | 21, 67 | 200K | 534789 | 1250 | 300000 | 5.33% | 8.81% | 13.67% | 0.47% |
684 | 86 | 34, 41 | 100K | 283506 | 1352 | 200000 | 10.08% | 14.89% | 23.46% | 1.50% |
218 | 74 | 2, 17 | 200K | 467692 | 985 | 300000 | 6.22% | 4.77% | 10.69% | 0.30% |
832 | 69 | 36, 67 | 100K | 292013 | 1270 | 200000 | 16.86% | 6.21% | 22.03% | 1.05% |
334 | 66 | 4, 51 | 100K | 252375 | 1121 | 200000 | 5.30% | 16.77% | 21.19% | 0.89% |
774 | 61 | 6, 19 | 100K | 288875 | 1326 | 200000 | 14.18% | 8.40% | 21.39% | 1.19% |
530 | 58 | 14, 52 | 100K | 272428 | 970 | 200000 | 7.44% | 10.76% | 17.40% | 0.80% |
317 | 52 | 20, 44 | 100K | 250106 | 1318 | 200000 | 18.66% | 7.42% | 24.69% | 1.38% |
140 | 46 | 8, 16 | 250K | 536533 | 1035 | 350000 | 2.35% | 8.43% | 10.58% | 0.20% |
887 | 38 | 16, 34 | 100K | 294793 | 975 | 200000 | 11.91% | 5.09% | 16.39% | 0.61% |
542 | 32 | 2, 13 | 100K | 273400 | 747 | 200000 | 3.29% | 9.83% | 12.79% | 0.32% |
68 | 22 | 12, 17 | 250K | 458128 | 801 | 350000 | 2.33% | 7.14% | 9.30% | 0.17% |
620 | 22 | 12, 13 | 100K | 279240 | 1002 | 200000 | 6.56% | 11.19% | 17.01% | 0.73% |
395 | 10 | 4, 8 | 200K | 519320 | 1177 | 300000 | 10.83% | 1.30% | 12.00% | 0.14% |
593 | 10 | 4, 8 | 200K | 554611 | 745 | 300000 | 3.92% | 3.52% | 7.30% | 0.14% |
Max | 31.86% | 43.22% | 47.21% | 5.05% |
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