Last updated: 15 April 2024
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Generalized Fermat Primes, 18
Term: b262144 + 1 Total: 109 Reference: PrimePages |
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| Rank | Number | Digits | When | Who | PrimePages - ID |
|---|---|---|---|---|---|
| 1 | 37349040262144 + 1 | 1985028 | Apr 2024 | Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137931 |
| 2 | 37047448262144 + 1 | 1984105 | Mar 2024 | Alex Meister; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137907 |
| 3 | 36778106262144 + 1 | 1983274 | Mar 2024 | Benoit Da Mota; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137890 |
| 4 | 36748386262144 + 1 | 1983182 | Mar 2024 | Benoit Da Mota; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137887 |
| 5 | 36717890262144 + 1 | 1983088 | Mar 2024 | Jonathan Sipes; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137877 |
| 6 | 36210400262144 + 1 | 1981503 | Mar 2024 | Ryan Propper; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137849 |
| 7 | 35196086262144 + 1 | 1978269 | Mar 2024 | Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137759 |
| 8 | 34443124262144 + 1 | 1975807 | Feb 2024 | Valter Cavecchia; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137659 |
| 9 | 33798406262144 + 1 | 1973655 | Feb 2024 | Jochen Beck; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137600 |
| 10 | 33491530262144 + 1 | 1972617 | Feb 2024 | Bob Calvin; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137564 |
| 11 | 33061466262144 + 1 | 1971146 | Feb 2024 | Anthony Templin; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137486 |
| 12 | 32497152262144 + 1 | 1969186 | Feb 2024 | Marius Vultur; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137347 |
| 13 | 32171198262144 + 1 | 1968038 | Feb 2024 | Wes Hewitt; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137244 |
| 14 | 32067848262144 + 1 | 1967672 | Feb 2024 | Hans Sveen; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137192 |
| 15 | 31371484262144 + 1 | 1965172 | Jan 2024 | Randy Eldredge; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136896 |
| 16 | 30941436262144 + 1 | 1963601 | Jan 2024 | Yuya Mochizuki; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136870 |
| 17 | 29645358262144 + 1 | 1958729 | Dec 2023 | James Schumacher; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136793 |
| 18 | 29614286262144 + 1 | 1958610 | Dec 2023 | John Bodlina; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136797 |
| 19 | 29445800262144 + 1 | 1957960 | Dec 2023 | Greg Miller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136790 |
| 20 | 29353924262144 + 1 | 1957604 | Dec 2023 | Vaughan Davies; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136788 |
| 21 | 29333122262144 + 1 | 1957524 | Dec 2023 | Lorin Arnold; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136787 |
| 22 | 29097000262144 + 1 | 1956604 | Dec 2023 | LeRoy Blanchard; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136792 |
| 23 | 28342134262144 + 1 | 1953611 | Dec 2023 | Axel Amberg; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136753 |
| 24 | 28259150262144 + 1 | 1953277 | Dec 2023 | Jan Kožíšek; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136751 |
| 25 | 28004468262144 + 1 | 1952246 | Dec 2023 | Marius Vultur; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136743 |
| 26 | 27789002262144 + 1 | 1951367 | Dec 2023 | Lleyton Joseph; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136731 |
| 27 | 27615064262144 + 1 | 1950652 | Dec 2023 | Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136714 |
| 28 | 26640150262144 + 1 | 1946560 | Oct 2023 | Shaun Stewart; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136553 |
| 29 | 26128000262144 + 1 | 1944350 | Sep 2023 | James Elmore; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136442 |
| 30 | 25875054262144 + 1 | 1943243 | Aug 2023 | Michael Millerick; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136367 |
| 31 | 25690360262144 + 1 | 1942427 | Aug 2023 | Shihan Zhao; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136343 |
| 32 | 25635940262144 + 1 | 1942186 | Aug 2023 | Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136326 |
| 33 | 25461468262144 + 1 | 1941408 | Jul 2023 | Honza Cholt; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136289 |
| 34 | 25333402262144 + 1 | 1940834 | Jul 2023 | Dieter Börgerding; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136268 |
| 35 | 24678636262144 + 1 | 1937853 | Jun 2023 | Marius Vultur; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136129 |
| 36 | 24429706262144 + 1 | 1936699 | May 2023 | Eli T. Drumm; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136113 |
| 37 | 23591460262144 + 1 | 1932724 | Apr 2023 | Rafael Trigueiro; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135987 |
| 38 | 23479122262144 + 1 | 1932181 | Apr 2023 | Mariusz Ługowski; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135965 |
| 39 | 22984886262144 + 1 | 1929758 | Mar 2023 | Frank Doornink; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135884 |
| 40 | 22790808262144 + 1 | 1928793 | Mar 2023 | Bryan Little; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135841 |
| 41 | 22480000262144 + 1 | 1927230 | Mar 2023 | Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135790 |
| 42 | 22479752262144 + 1 | 1927229 | Mar 2023 | Alex Huetter; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135788 |
| 43 | 22470828262144 + 1 | 1927183 | Mar 2023 | Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135785 |
| 44 | 20866766262144 + 1 | 1918752 | Feb 2023 | Tom Greer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135532 |
| 45 | 20710506262144 + 1 | 1917896 | Feb 2023 | Milan Fňašek; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135502 |
| 46 | 20543682262144 + 1 | 1916975 | Feb 2023 | Darren Li; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135401 |
| 47 | 20105956262144 + 1 | 1914523 | Feb 2023 | Uwe Hass; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135314 |
| 48 | 19859450262144 + 1 | 1913119 | Feb 2023 | Detlef Lexut; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135255 |
| 49 | 19527922262144 + 1 | 1911202 | Feb 2023 | Bill Cavnaugh; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135194 |
| 50 | 19322744262144 + 1 | 1910000 | Feb 2023 | Will Steinbach; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 135166 |
| 51 | 18395930262144 + 1 | 1904404 | Dec 2022 | Ryan Propper; GFNSvCUDA sieve; GeneFer; | 134628 |
| 52 | 17191822262144 + 1 | 1896697 | Dec 2022 | Ryan Propper; GFNSvCUDA sieve; GeneFer; | 134609 |
| 53 | 16769618262144 + 1 | 1893866 | Nov 2022 | Per Provencher; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 134589 |
| 54 | 16048460262144 + 1 | 1888862 | Sep 2022 | Zoltan Kemenes; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 134387 |
| 55 | 15913772262144 + 1 | 1887902 | Aug 2022 | Vaughan Davies; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 134302 |
| 56 | 15859176262144 + 1 | 1887511 | Jul 2022 | William Byerly; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 134258 |
| 57 | 15417192262144 + 1 | 1884293 | Mar 2022 | Erik Veit; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 133785 |
| 58 | 14741470262144 + 1 | 1879190 | Feb 2022 | Timothy D Winslow; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 133443 |
| 59 | 14399216262144 + 1 | 1876516 | Dec 2021 | Bill Cavnaugh; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 133074 |
| 60 | 14103144262144 + 1 | 1874151 | Oct 2021 | Kai Gerstenberger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 132807 |
| 61 | 13911580262144 + 1 | 1872594 | Aug 2021 | Eudy Silva; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 132643 |
| 62 | 13640376262144 + 1 | 1870352 | May 2021 | Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 132356 |
| 63 | 13553882262144 + 1 | 1869628 | May 2021 | Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 132289 |
| 64 | 13039868262144 + 1 | 1865227 | Feb 2021 | Liam McGonegal; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 131844 |
| 65 | 12959788262144 + 1 | 1864525 | Feb 2021 | Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 131737 |
| 66 | 12582496262144 + 1 | 1861162 | Jan 2021 | Jacques Molné; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 131529 |
| 67 | 12529818262144 + 1 | 1860684 | Dec 2020 | Brendon Gory; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 131525 |
| 68 | 12304152262144 + 1 | 1858615 | Dec 2020 | Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 131510 |
| 69 | 12189878262144 + 1 | 1857553 | Dec 2020 | Brian D. Niegocki; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 131518 |
| 70 | 11081688262144 + 1 | 1846702 | Sep 2020 | Erik Veit; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 131256 |
| 71 | 10979776262144 + 1 | 1845650 | Aug 2020 | John Hall; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 131088 |
| 72 | 10829576262144 + 1 | 1844082 | Jul 2020 | Per Provencher; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 131019 |
| 73 | 10793312262144 + 1 | 1843700 | Jul 2020 | Brian D. Niegocki; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130999 |
| 74 | 10627360262144 + 1 | 1841936 | Jun 2020 | Nick Merrylees; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130944 |
| 75 | 10578478262144 + 1 | 1841411 | May 2020 | Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130929 |
| 76 | 9812766262144 + 1 | 1832857 | Feb 2020 | Tom Greer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130530 |
| 77 | 9750938262144 + 1 | 1832137 | Feb 2020 | Alen Kecic; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130484 |
| 78 | 9450844262144 + 1 | 1828578 | Jan 2020 | Jacob Eikelenboom; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130272 |
| 79 | 9125820262144 + 1 | 1824594 | Dec 2019 | Yoshimitsu Kato; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130158 |
| 80 | 8883864262144 + 1 | 1821535 | Nov 2019 | Rod Skinner; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130088 |
| 81 | 8521794262144 + 1 | 1816798 | Sep 2019 | Ken Ito; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 129918 |
| 82 | 6291332262144 + 1 | 1782250 | Dec 2018 | Karsten Freihube; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 125862 |
| 83 | 6287774262144 + 1 | 1782186 | Dec 2018 | Greg Miller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 125859 |
| 84 | 5828034262144 + 1 | 1773542 | Sep 2018 | Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 125648 |
| 85 | 5205422262144 + 1 | 1760679 | Jun 2018 | Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 125388 |
| 86 | 5152128262144 + 1 | 1759508 | Jun 2018 | Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 125364 |
| 87 | 4489246262144 + 1 | 1743828 | Mar 2018 | Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 124488 |
| 88 | 4246258262144 + 1 | 1737493 | Feb 2018 | Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 124353 |
| 89 | 3933508262144 + 1 | 1728783 | Jan 2018 | Alen Kecic; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 124190 |
| 90 | 3853792262144 + 1 | 1726452 | Jan 2018 | Rod Skinner; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 124118 |
| 91 | 3673932262144 + 1 | 1721010 | Dec 2017 | Sean Humphries; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 124044 |
| 92 | 3596074262144 + 1 | 1718572 | Nov 2017 | Howard Gordon; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 123995 |
| 93 | 3547726262144 + 1 | 1717031 | Oct 2017 | Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 123974 |
| 94 | 3060772262144 + 1 | 1700222 | Jun 2017 | Sean Humphries; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 123617 |
| 95 | 2676404262144 + 1 | 1684945 | Mar 2017 | Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 123187 |
| 96 | 2611294262144 + 1 | 1682141 | Mar 2017 | Roman Vogt; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 123136 |
| 97 | 2514168262144 + 1 | 1677825 | Feb 2017 | William de Thomas; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 123051 |
| 98 | 2042774262144 + 1 | 1654187 | Nov 2016 | Tsuyoshi Ohsugi; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 122532 |
| 99 | 1828858262144 + 1 | 1641593 | Aug 2016 | Brook Harste; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 122018 |
| 100 | 1615588262144 + 1 | 1627477 | May 2016 | Brook Harste; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 121619 |
| 101 | 1488256262144 + 1 | 1618131 | Mar 2016 | Stefan Larsson; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 121375 |
| 102 | 1415198262144 + 1 | 1612400 | Feb 2016 | Frank Matillek; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 121187 |
| 103 | 773620262144 + 1 | 1543643 | Apr 2012 | Senji Yamashita; geneferCUDA; AthGFNSieve; PrimeGrid; LLR | 106465 |
| 104 | 676754262144 + 1 | 1528413 | Feb 2012 | Carlos Loureiro; geneferCUDA; AthGFNSieve; PrimeGrid; LLR | 104592 |
| 105 | 525094262144 + 1 | 1499526 | Jan 2012 | David Tomecko; geneferCUDA; AthGFNSieve; PrimeGrid; OpenPFGW | 103976 |
| 106 | 361658262144 + 1 | 1457075 | Nov 2011 | Michel Johnson; geneferCUDA; AthGFNSieve; PrimeGrid; OpenPFGW | 102720 |
| 107 | 145310262144 + 1 | 1353265 | Feb 2011 | Ricky L Hubbard; GenefX64; AthGFNSieve; PrimeGrid; OpenPFGW | 98160 |
| 108 | 40734262144 + 1 | 1208473 | Mar 2011 | Senji Yamashita; GenefX64; AthGFNSieve; PrimeGrid; OpenPFGW | 99092 |
| 109 | 24518262144 + 1 | 1150678 | Mar 2008 | Stephen Scott; AthGFNSieve; Proth | 84401 |
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Generalized Fermat Primes, 19
Term: b524288 + 1 Total: 17 Reference: PrimePages |
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| Rank | Number | Digits | When | Who | PrimePages - ID |
|---|---|---|---|---|---|
| 1 | 8630170524288 + 1 | 3636472 | Apr 2024 | Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 137963 |
| 2 | 6339004524288 + 1 | 3566218 | Jun 2023 | Ken Glennie; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 136150 |
| 3 | 5897794524288 + 1 | 3549792 | Dec 2022 | Ryan Propper; GFNSvCUDA sieve; GeneFer; | 134642 |
| 4 | 4896418524288 + 1 | 3507424 | May 2022 | Tom Greer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 133947 |
| 5 | 3638450524288 + 1 | 3439810 | May 2020 | Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130938 |
| 6 | 3214654524288 + 1 | 3411613 | Dec 2019 | Alen Kecic; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 130199 |
| 7 | 2985036524288 + 1 | 3394739 | Sep 2019 | Peter Harvey; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 129943 |
| 8 | 2877652524288 + 1 | 3386397 | Jun 2019 | Roman Vogt; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 126598 |
| 9 | 2788032524288 + 1 | 3379193 | Apr 2019 | Ed Goforth; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 126397 |
| 10 | 2733014524288 + 1 | 3374655 | Mar 2019 | Yair Givoni; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 126324 |
| 11 | 2312092524288 + 1 | 3336572 | Aug 2018 | Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 125520 |
| 12 | 2061748524288 + 1 | 3310478 | Mar 2018 | Cesare Marini; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 124537 |
| 13 | 1880370524288 + 1 | 3289511 | Jan 2018 | Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 124143 |
| 14 | 475856524288 + 1 | 2976633 | Aug 2012 | Masashi Kumagai; geneferCUDA; AthGFNSieve; PrimeGrid; LLR | 108818 |
| 15 | 356926524288 + 1 | 2911151 | Jul 2012 | Tim McArdle; GenefX64; AthGFNSieve; PrimeGrid; LLR | 108492 |
| 16 | 341112524288 + 1 | 2900832 | Jun 2012 | Peyton Hayslette; geneferCUDA; AthGFNSieve; PrimeGrid; LLR | 107930 |
| 17 | 75898524288 + 1 | 2558647 | Nov 2011 | Michael Goetz; geneferCUDA; AthGFNSieve; PrimeGrid; OpenPFGW | 103235 |
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Generalized Fermat Primes, 20
Term: b1048576 + 1 Total: 4 References: PrimePages |
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| Rank | Number | Digits | When | Who | PrimePages - ID |
|---|---|---|---|---|---|
| 1 | 19637361048576 + 1 | 6598776 | Sep 2022 | Tom Greer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 134423 |
| 2 | 19517341048576 + 1 | 6595985 | Aug 2022 | Kazuya Tanaka; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 134298 |
| 3 | 10590941048576 + 1 | 6317602 | Nov 2018 | Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 125753 |
| 4 | 9194441048576 + 1 | 6253210 | Sep 2017 | Sylvanus A. Zimmerman; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR | 123875 |