Wagstaff (probable) Primes
Term: (2p + 1) / 3 Total: 44 Reference: PrimePages & Mersenneforum |
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Rank | Number | Digits | When | Who | Status on factordb |
PrimePages - ID |
---|---|---|---|---|---|---|
1 | (215135397 + 1) / 3 | 4556209 | Jun 2021 | Ryan Propper | PRP | - |
2 | (213372531 + 1) / 3 | 4025533 | Sep 2013 | Ryan Propper | PRP | - |
3 | (213347311 + 1) / 3 | 4017941 | Sep 2013 | Ryan Propper | PRP | - |
4 | (24031399 + 1) / 3 | 1213572 | Feb 2010 | Tony Reix;Diepeveen-Underwood-Reix | PRP | - |
5 | (2986191 + 1) / 3 | 296873 | Jun 2008 | Vincent Diepeveen | PRP | - |
6 | (2374321 + 1) / 3 | 112682 | Dec 2000 | Henri & Renaud Lifchitz | PRP | - |
7 | (2269987 + 1) / 3 | 81274 | Oct 2000 | Henri & Renaud Lifchitz | PRP | - |
8 | (2267017 + 1) / 3 | 80380 | Sep 2000 | Henri & Renaud Lifchitz | PRP | - |
9 | (2141079 + 1) / 3 | 42469 | Sep 2000 | Henri & Renaud Lifchitz | PRP | - |
10 | (2138937 + 1) / 3 | 41824 | Oct 2023 | Andreas Enge; Paul Underwood; CM | Prime | 136562 |
11 | (2127031 + 1) / 3 | 38240 | Jan 2023 | Paul Underwood; CM | Prime | 134830 |
12 | (2117239 + 1) / 3 | 35292 | Aug 2022 | Ryan Propper; CM | Prime | 134282 |
13 | (295369 + 1) / 3 | 28709 | Aug 2021 | Laurent Facq; Jared Asuncion; Bill Allombert | Prime | 132583 |
14 | (283339 + 1) / 3 | 25088 | Sep 2014 | Tom Wu; Primo | Prime | 118512 |
15 | (242737 + 1) / 3 | 12865 | Aug2007 | François Morain | Prime | 82071 |
16 | (214479 + 1) / 3 | 4359 | Nov 2004 | David Broadhurst; Primo | Prime | 74683 |
17 | (212391 + 1) / 3 | 3730 | May 1996 | François Morain | Prime | 27688 |
18 | (211279 + 1) / 3 | 3395 | Jan 1998 | Preda Mihailescu | Prime | 28909 |
19 | (210691 + 1) / 3 | 3218 | Oct 2004 | David Broadhurst; Primo | Prime | 74682 |
20 | (210501 + 1) / 3 | 3161 | May 1996 | François Morain | Prime | 29287 |
21 | (25807 + 1) / 3 | 1748 | 1998 | Preda Mihailescu | Prime | 72546 |
22 | (23539 + 1) / 3 | 1065 | 1989 | François Morain | Prime | 54344 |
23 | (22617 + 1) / 3 | 788 | - | - | Prime | - |
24 | (21709 + 1) / 3 | 514 | - | - | Prime | - |
25 | (2701 + 1) / 3 | 211 | - | - | Prime | - |
26 | (2347 + 1) / 3 | 104 | - | - | Prime | - |
27 | (2313 + 1) / 3 | 94 | - | - | Prime | - |
28 | (2199 + 1) / 3 | 60 | - | - | Prime | - |
29 | (2191 + 1) / 3 | 58 | - | - | Prime | - |
30 | (2167 + 1) / 3 | 50 | - | - | Prime | - |
31 | (2127 + 1) / 3 | 38 | - | - | Prime | - |
32 | (2101 + 1) / 3 | 30 | - | - | Prime | - |
33 | (279 + 1) / 3 | 24 | - | - | Prime | - |
34 | (261 + 1) / 3 | 18 | - | - | Prime | - |
35 | (243 + 1) / 3 | 13 | - | - | Prime | - |
36 | (231 + 1) / 3 | 9 | - | - | Prime | - |
37 | (223 + 1) / 3 | 7 | - | - | Prime | - |
38 | (219 + 1) / 3 | 6 | - | - | Prime | - |
39 | (217 + 1) / 3 | 5 | - | - | Prime | - |
40 | (213 + 1) / 3 | 4 | - | - | Prime | - |
41 | (211 + 1) / 3 | 3 | - | - | Prime | - |
42 | (25 + 1) / 3 | 2 | - | - | Prime | - |
43 | (27 + 1) / 3 | 2 | - | - | Prime | - |
44 | (23 + 1) / 3 | 1 | - | - | Prime | - |