Generalized Fermat Primes, 18
Term: b262144 + 1
Total: 179

Reference: PrimePages
Rank Number Digits When Who PrimePages - ID
1 59145944262144 + 1 2037364 Mar 2025 Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140519
2 58936230262144 + 1 2036960 Mar 2025 Ricky L Hubbard; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140518
3 58870004262144 + 1 2036832 Mar 2025 Dr. sc. nat. Bernhard Pabsch; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140517
4 58846688262144 + 1 2036787 Mar 2025 Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140515
5 58333324262144 + 1 2035789 Mar 2025 Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140508
6 58288282262144 + 1 2035701 Mar 2025 Patrick Schöfer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140510
7 57643582262144 + 1 2034435 Mar 2025 Leon Bird; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140507
8 57594478262144 + 1 2034338 Mar 2025 Todd Pickering; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140506
9 57478518262144 + 1 2034108 Mar 2025 Grzegorz Granowski; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140514
10 57429230262144 + 1 2034011 Mar 2025 Valter Cavecchia; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140502
11 56303352262144 + 1 2031757 Mar 2025 Barry Walsh; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140500
12 56295176262144 + 1 2031740 Mar 2025 Jonathan Seeley; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140495
13 55952434262144 + 1 2031045 Mar 2025 Marius Vultur; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140494
14 55892864262144 + 1 2030923 Mar 2025 Louis Meuler; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140499
15 55702322262144 + 1 2030535 Mar 2025 Leon Bird; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140498
16 55695224262144 + 1 2030520 Mar 2025 Vaughan Davies; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140491
17 55169618262144 + 1 2029441 Mar 2025 Martin Neujahr; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140487
18 55007338262144 + 1 2029105 Mar 2025 Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140486
19 54852328262144 + 1 2028784 Mar 2025 LeRoy Blanchard; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140490
20 54528918262144 + 1 2028111 Mar 2025 LeRoy Blanchard; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140493
21 54044092262144 + 1 2027094 Mar 2025 Zack Friedrichsen; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140481
22 53903472262144 + 1 2026797 Mar 2025 Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140485
23 53750036262144 + 1 2026473 Mar 2025 Alen Kecic; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140480
24 53616962262144 + 1 2026191 Mar 2025 Peter Hundhausen; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140505
25 53311612262144 + 1 2025540 Mar 2025 Pavel Rosický; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140479
26 53008094262144 + 1 2024890 Mar 2025 Alex Hogan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140475
27 52648144262144 + 1 2024115 Mar 2025 John Hall; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140447
28 52599274262144 + 1 2024009 Mar 2025 Scott Lee; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140446
29 52592976262144 + 1 2023995 Mar 2025 Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140445
30 51992174262144 + 1 2022687 Mar 2025 Valter Cavecchia; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140390
31 51852794262144 + 1 2022382 Mar 2025 Vaughan Davies; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140379
32 51714136262144 + 1 2022077 Mar 2025 Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140369
33 51283286262144 + 1 2021124 Mar 2025 Margus Sõmer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140335
34 51125138262144 + 1 2020773 Mar 2025 Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140312
35 50454356262144 + 1 2019269 Mar 2025 Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140253
36 50449664262144 + 1 2019259 Mar 2025 Marius Vultur; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140252
37 50366208262144 + 1 2019070 Mar 2025 Anthony Templin; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140240
38 50121532262144 + 1 2018516 Feb 2025 Andrew Dunchouk; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140191
39 49536902262144 + 1 2017180 Feb 2025 Valter Cavecchia; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140146
40 49235348262144 + 1 2016485 Feb 2025 Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140107
41 49209090262144 + 1 2016424 Feb 2025 Anthony Templin; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140106
42 48055302262144 + 1 2013723 Feb 2025 Zack Friedrichsen; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139880
43 47707672262144 + 1 2012896 Feb 2025 Gregory Coscia; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139834
44 47351862262144 + 1 2012044 Feb 2025 Christian Probst; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139788
45 47281922262144 + 1 2011876 Feb 2025 Kai Presler; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139764
46 47255958262144 + 1 2011813 Feb 2025 Louis Meuler; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139763
47 46831458262144 + 1 2010786 Feb 2025 John S Chambers; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139711
48 46378776262144 + 1 2009680 Feb 2025 David Hua; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139578
49 45073202262144 + 1 2006429 Jan 2025 Bruce Slade; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139095
50 45007104262144 + 1 2006262 Jan 2025 Valter Cavecchia; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139038
51 44819108262144 + 1 2005786 Jan 2025 Bruce Marler; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138913
52 44666524262144 + 1 2005397 Jan 2025 Jean-Luc Garambois; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138866
53 44144624262144 + 1 2004059 Dec 2024 Kai Presler; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138809
54 44030166262144 + 1 2003764 Dec 2024 Kai Presler; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138812
55 43330794262144 + 1 2001941 Dec 2024 Howard Shi; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138751
56 42781592262144 + 1 2000489 Nov 2024 Latah Headrick; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138727
57 42474318262144 + 1 1999668 Dec 2024 Anonymous; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138741
58 42006214262144 + 1 1998406 Oct 2024 David Åkesson; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138671
59 40460760262144 + 1 1994139 Jul 2024 Latah Headrick; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138362
60 39896728262144 + 1 1992541 Jun 2024 Richard R Wheeler; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138259
61 39164812262144 + 1 1990433 May 2024 Shawn Schafer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138159
62 38786700262144 + 1 1989328 May 2024 Tom Greer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138110
63 38786786262144 + 1 1989328 May 2024 Michael Garrison; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138119
64 38738332262144 + 1 1989186 May 2024 Wei Tang; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138113
65 38214850262144 + 1 1987637 May 2024 KaiMing Poon; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138077
66 38108804262144 + 1 1987321 Apr 2024 Reginald McLean; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138042
67 37986650262144 + 1 1986955 May 2024 Kyle J Johnson; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138055
68 37787006262144 + 1 1986355 Apr 2024 Matt Jurach; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137989
69 37700936262144 + 1 1986096 May 2024 Anonymous; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138076
70 37689944262144 + 1 1986063 May 2024 Anonymous; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138095
71 37349040262144 + 1 1985028 Apr 2024 Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137931
72 37047448262144 + 1 1984105 Mar 2024 Alex Meister; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137907
73 36778106262144 + 1 1983274 Mar 2024 Benoit Da Mota; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137890
74 36748386262144 + 1 1983182 Mar 2024 Benoit Da Mota; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137887
75 36717890262144 + 1 1983088 Mar 2024 Jonathan Sipes; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137877
76 36210400262144 + 1 1981503 Mar 2024 Ryan Propper; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137849
77 35196086262144 + 1 1978269 Mar 2024 Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137759
78 34443124262144 + 1 1975807 Feb 2024 Valter Cavecchia; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137659
79 33798406262144 + 1 1973655 Feb 2024 Jochen Beck; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137600
80 33491530262144 + 1 1972617 Feb 2024 Bob Calvin; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137564
81 33061466262144 + 1 1971146 Feb 2024 Anthony Templin; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137486
82 32497152262144 + 1 1969186 Feb 2024 Marius Vultur; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137347
83 32171198262144 + 1 1968038 Feb 2024 Wes Hewitt; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137244
84 32067848262144 + 1 1967672 Feb 2024 Hans Sveen; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137192
85 31371484262144 + 1 1965172 Jan 2024 Randy Eldredge; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136896
86 30941436262144 + 1 1963601 Jan 2024 Yuya Mochizuki; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136870
87 29645358262144 + 1 1958729 Dec 2023 James Schumacher; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136793
88 29614286262144 + 1 1958610 Dec 2023 John Bodlina; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136797
89 29445800262144 + 1 1957960 Dec 2023 Greg Miller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136790
90 29353924262144 + 1 1957604 Dec 2023 Vaughan Davies; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136788
91 29333122262144 + 1 1957524 Dec 2023 Lorin Arnold; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136787
92 29097000262144 + 1 1956604 Dec 2023 LeRoy Blanchard; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136792
93 28342134262144 + 1 1953611 Dec 2023 Axel Amberg; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136753
94 28259150262144 + 1 1953277 Dec 2023 Jan Kožíšek; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136751
95 28004468262144 + 1 1952246 Dec 2023 Marius Vultur; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136743
96 27789002262144 + 1 1951367 Dec 2023 Lleyton Joseph; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136731
97 27615064262144 + 1 1950652 Dec 2023 Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136714
98 26640150262144 + 1 1946560 Oct 2023 Shaun Stewart; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136553
99 26128000262144 + 1 1944350 Sep 2023 James Elmore; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136442
100 25875054262144 + 1 1943243 Aug 2023 Michael Millerick; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136367
101 25690360262144 + 1 1942427 Aug 2023 Shihan Zhao; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136343
102 25635940262144 + 1 1942186 Aug 2023 Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136326
103 25461468262144 + 1 1941408 Jul 2023 Honza Cholt; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136289
104 25333402262144 + 1 1940834 Jul 2023 Dieter Börgerding; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136268
105 24678636262144 + 1 1937853 Jun 2023 Marius Vultur; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136129
106 24429706262144 + 1 1936699 May 2023 Eli T. Drumm; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136113
107 23591460262144 + 1 1932724 Apr 2023 Rafael Trigueiro; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135987
108 23479122262144 + 1 1932181 Apr 2023 Mariusz Ługowski; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135965
109 22984886262144 + 1 1929758 Mar 2023 Frank Doornink; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135884
110 22790808262144 + 1 1928793 Mar 2023 Bryan Little; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135841
111 22480000262144 + 1 1927230 Mar 2023 Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135790
112 22479752262144 + 1 1927229 Mar 2023 Alex Huetter; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135788
113 22470828262144 + 1 1927183 Mar 2023 Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135785
114 20866766262144 + 1 1918752 Feb 2023 Tom Greer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135532
115 20710506262144 + 1 1917896 Feb 2023 Milan Fňašek; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135502
116 20543682262144 + 1 1916975 Feb 2023 Darren Li; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135401
117 20105956262144 + 1 1914523 Feb 2023 Uwe Hass; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135314
118 19859450262144 + 1 1913119 Feb 2023 Detlef Lexut; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135255
119 19527922262144 + 1 1911202 Feb 2023 Bill Cavnaugh; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135194
120 19322744262144 + 1 1910000 Feb 2023 Will Steinbach; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 135166
121 18395930262144 + 1 1904404 Dec 2022 Ryan Propper; GFNSvCUDA sieve; GeneFer; 134628
122 17191822262144 + 1 1896697 Dec 2022 Ryan Propper; GFNSvCUDA sieve; GeneFer; 134609
123 16769618262144 + 1 1893866 Nov 2022 Per Provencher; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 134589
124 16048460262144 + 1 1888862 Sep 2022 Zoltan Kemenes; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 134387
125 15913772262144 + 1 1887902 Aug 2022 Vaughan Davies; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 134302
126 15859176262144 + 1 1887511 Jul 2022 William Byerly; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 134258
127 15417192262144 + 1 1884293 Mar 2022 Erik Veit; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 133785
128 14741470262144 + 1 1879190 Feb 2022 Timothy D Winslow; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 133443
129 14399216262144 + 1 1876516 Dec 2021 Bill Cavnaugh; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 133074
130 14103144262144 + 1 1874151 Oct 2021 Kai Gerstenberger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 132807
131 13911580262144 + 1 1872594 Aug 2021 Eudy Silva; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 132643
132 13640376262144 + 1 1870352 May 2021 Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 132356
133 13553882262144 + 1 1869628 May 2021 Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 132289
134 13039868262144 + 1 1865227 Feb 2021 Liam McGonegal; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 131844
135 12959788262144 + 1 1864525 Feb 2021 Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 131737
136 12582496262144 + 1 1861162 Jan 2021 Jacques Molné; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 131529
137 12529818262144 + 1 1860684 Dec 2020 Brendon Gory; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 131525
138 12304152262144 + 1 1858615 Dec 2020 Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 131510
139 12189878262144 + 1 1857553 Dec 2020 Brian D. Niegocki; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 131518
140 11081688262144 + 1 1846702 Sep 2020 Erik Veit; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 131256
141 10979776262144 + 1 1845650 Aug 2020 John Hall; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 131088
142 10829576262144 + 1 1844082 Jul 2020 Per Provencher; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 131019
143 10793312262144 + 1 1843700 Jul 2020 Brian D. Niegocki; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130999
144 10627360262144 + 1 1841936 Jun 2020 Nick Merrylees; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130944
145 10578478262144 + 1 1841411 May 2020 Igor Keller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130929
146 9812766262144 + 1 1832857 Feb 2020 Tom Greer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130530
147 9750938262144 + 1 1832137 Feb 2020 Alen Kecic; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130484
148 9450844262144 + 1 1828578 Jan 2020 Jacob Eikelenboom; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130272
149 9125820262144 + 1 1824594 Dec 2019 Yoshimitsu Kato; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130158
150 8883864262144 + 1 1821535 Nov 2019 Rod Skinner; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130088
151 8521794262144 + 1 1816798 Sep 2019 Ken Ito; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 129918
152 6291332262144 + 1 1782250 Dec 2018 Karsten Freihube; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 125862
153 6287774262144 + 1 1782186 Dec 2018 Greg Miller; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 125859
154 5828034262144 + 1 1773542 Sep 2018 Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 125648
155 5205422262144 + 1 1760679 Jun 2018 Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 125388
156 5152128262144 + 1 1759508 Jun 2018 Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 125364
157 4489246262144 + 1 1743828 Mar 2018 Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 124488
158 4246258262144 + 1 1737493 Feb 2018 Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 124353
159 3933508262144 + 1 1728783 Jan 2018 Alen Kecic; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 124190
160 3853792262144 + 1 1726452 Jan 2018 Rod Skinner; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 124118
161 3673932262144 + 1 1721010 Dec 2017 Sean Humphries; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 124044
162 3596074262144 + 1 1718572 Nov 2017 Howard Gordon; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 123995
163 3547726262144 + 1 1717031 Oct 2017 Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 123974
164 3060772262144 + 1 1700222 Jun 2017 Sean Humphries; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 123617
165 2676404262144 + 1 1684945 Mar 2017 Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 123187
166 2611294262144 + 1 1682141 Mar 2017 Roman Vogt; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 123136
167 2514168262144 + 1 1677825 Feb 2017 William de Thomas; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 123051
168 2042774262144 + 1 1654187 Nov 2016 Tsuyoshi Ohsugi; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 122532
169 1828858262144 + 1 1641593 Aug 2016 Brook Harste; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 122018
170 1615588262144 + 1 1627477 May 2016 Brook Harste; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 121619
171 1488256262144 + 1 1618131 Mar 2016 Stefan Larsson; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 121375
172 1415198262144 + 1 1612400 Feb 2016 Frank Matillek; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 121187
173 773620262144 + 1 1543643 Apr 2012 Senji Yamashita; geneferCUDA; AthGFNSieve; PrimeGrid; LLR 106465
174 676754262144 + 1 1528413 Feb 2012 Carlos Loureiro; geneferCUDA; AthGFNSieve; PrimeGrid; LLR 104592
175 525094262144 + 1 1499526 Jan 2012 David Tomecko; geneferCUDA; AthGFNSieve; PrimeGrid; OpenPFGW 103976
176 361658262144 + 1 1457075 Nov 2011 Michel Johnson; geneferCUDA; AthGFNSieve; PrimeGrid; OpenPFGW 102720
177 145310262144 + 1 1353265 Feb 2011 Ricky L Hubbard; GenefX64; AthGFNSieve; PrimeGrid; OpenPFGW 98160
178 40734262144 + 1 1208473 Mar 2011 Senji Yamashita; GenefX64; AthGFNSieve; PrimeGrid; OpenPFGW 99092
179 24518262144 + 1 1150678 Mar 2008 Stephen Scott; AthGFNSieve; Proth 84401

Generalized Fermat Primes, 19
Term: b524288 + 1
Total: 24

Reference: PrimePages
Rank Number Digits When Who PrimePages - ID
1 13520762524288 + 1 3738699 Feb 2025 Zimai Wu; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140170
2 13427472524288 + 1 3737122 Mar 2025 Jean-Luc Garambois; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 140291
3 12900356524288 + 1 3728004 Jan 2025 Valter Cavecchia; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 139212
4 12693488524288 + 1 3724323 Jan 2025 Jason Biggs; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138830
5 11937916524288 + 1 3710349 Oct 2024 Murray Sondergard; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138627
6 10913140524288 + 1 3689913 Jun 2024 Heinrich Podsada; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138229
7 9332124524288 + 1 3654278 Jun 2024 Detlef Lexut; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138244
8 8630170524288 + 1 3636472 Apr 2024 Antonio Lucendo; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 137963
9 6339004524288 + 1 3566218 Jun 2023 Ken Glennie; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 136150
10 5897794524288 + 1 3549792 Dec 2022 Ryan Propper; GFNSvCUDA sieve; GeneFer; 134642
11 4896418524288 + 1 3507424 May 2022 Tom Greer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 133947
12 3638450524288 + 1 3439810 May 2020 Wolfgang Schwieger; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130938
13 3214654524288 + 1 3411613 Dec 2019 Alen Kecic; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 130199
14 2985036524288 + 1 3394739 Sep 2019 Peter Harvey; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 129943
15 2877652524288 + 1 3386397 Jun 2019 Roman Vogt; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 126598
16 2788032524288 + 1 3379193 Apr 2019 Ed Goforth; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 126397
17 2733014524288 + 1 3374655 Mar 2019 Yair Givoni; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 126324
18 2312092524288 + 1 3336572 Aug 2018 Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 125520
19 2061748524288 + 1 3310478 Mar 2018 Cesare Marini; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 124537
20 1880370524288 + 1 3289511 Jan 2018 Dr. James Scott Brown; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 124143
21 475856524288 + 1 2976633 Aug 2012 Masashi Kumagai; geneferCUDA; AthGFNSieve; PrimeGrid; LLR 108818
22 356926524288 + 1 2911151 Jul 2012 Tim McArdle; GenefX64; AthGFNSieve; PrimeGrid; LLR 108492
23 341112524288 + 1 2900832 Jun 2012 Peyton Hayslette; geneferCUDA; AthGFNSieve; PrimeGrid; LLR 107930
24 75898524288 + 1 2558647 Nov 2011 Michael Goetz; geneferCUDA; AthGFNSieve; PrimeGrid; OpenPFGW 103235

Generalized Fermat Primes, 20
Term: b1048576 + 1
Total: 5

References: PrimePages
Rank Number Digits When Who PrimePages - ID
1 38432361048576 + 1 6904556 Dec 2024 Jonas Skendelis; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 138793
2 19637361048576 + 1 6598776 Sep 2022 Tom Greer; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 134423
3 19517341048576 + 1 6595985 Aug 2022 Kazuya Tanaka; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 134298
4 10590941048576 + 1 6317602 Nov 2018 Rob Gahan; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 125753
5 9194441048576 + 1 6253210 Sep 2017 Sylvanus A. Zimmerman; GFNSvCUDA sieve; GeneFer; AthGFNSieve; PrimeGrid; LLR 123875