Last updated: 01 March 2024

All Known AP26 (PrimeGrid)
Total: 40 + 6
RANK AP26 n's Digits When? Who?
1 236832297156314843 + 287316414 ⋅ 23# ⋅ n 0..25 19 28 Oct 2023 Brian D. Niegocki
2 179662917571934501 + 278434137 ⋅ 23# ⋅ n 0..25 19 27 Sep 2023 HyeongShin Kang
3 194737754615124463 + 275216905 ⋅ 23# ⋅ n 0..25 19 17 Sep 2023 Michael Garrison
4 273679105934949593 + 237731203 ⋅ 23# ⋅ n 0..25 19 09 May 2023 Jens Riemann
5 14430610470703957 + 283169697 ⋅ 23# ⋅ n 0..25 19 10 Jan 2023 Tom Greer
6 231022531968414343 + 234509067 ⋅ 23# ⋅ n 0..25 19 07 May 2023 Qian Zhao
7 36621451562941339 + 267460371 ⋅ 23# ⋅ n 0..25 19 17 Jul 2022 Hans-Jürgen Bergelt
8 605185576317848261 + 155368778 ⋅ 23# ⋅ n 1..26 19 10 Dec 2023 Michael Kwok
9 217967864087597803 + 230270814 ⋅ 23# ⋅ n 0..25 19 08 May 2023 Ian Crum
10 288572174125570757 + 216462528 ⋅ 23# ⋅ n 0..25 19 18 Jan 2023 Tom Greer
11 494595747870050117 + 173879184 ⋅ 23# ⋅ n 0..25 19 01 Mar 2024 Heinrich Podsada
12 605185576317848261 + 155368778 ⋅ 23# ⋅ n 0..25 19 10 Dec 2023 Michael Kwok
13 169316585031584671 + 216411924 ⋅ 23# ⋅ n 0..25 19 18 Jan 2023 Dao Heng Liu
14 277699295941594831 + 170826477 ⋅ 23# ⋅ n 1..26 19 26 May 2023 Tom Greer
15 277699295941594831 + 170826477 ⋅ 23# ⋅ n 0..26 19 26 May 2023 Tom Greer
16 331921599472360949 + 166810174 ⋅ 23# ⋅ n 0..25 19 10 May 2023 Till Preuß
17 807369478209664511 + 70463431 ⋅ 23# ⋅ n 0..25 19 05 Nov 2023 Wolfgang Schwieger
18 260947961525929049 + 166143654 ⋅ 23# ⋅ n 0..25 19 31 Jul 2021 Tuna Ertemalp
19 167981701213740889 + 179101773 ⋅ 23# ⋅ n 0..25 19 23 Nov 2021 VirtualLarry
20 36583259576579953 + 201392968 ⋅ 23# ⋅ n 0..25 19 07 Nov 2020 Rusty Clark
21 518215251504616021 + 107056852 ⋅ 23# ⋅ n 0..25 19 12 Jul 2023 Frank Matillek
22 461497054041390487 + 108734395 ⋅ 23# ⋅ n 0..25 19 26 Nov 2021 Jaroslav Čampulka
23 749312249758551431 + 50047363 ⋅ 23# ⋅ n 0..25 19 24 Aug 2023 nadoteg
24 535466413607576189 + 72638297 ⋅ 23# ⋅ n 0..25 18 22 Jan 2023 Jeff Thornton
25 189739962727792831 + 128332784 ⋅ 23# ⋅ n 0..25 18 28 Sep 2020 Glenn Hall
26 411396892274929843 + 87211488 ⋅ 23# ⋅ n 0..25 18 25 Jun 2021 Juha Hauhia
27 465808529215122257 + 72963664 ⋅ 23# ⋅ n 0..25 18 01 Mar 2021 Juha Hauhia
28 508792661457619141 + 46576893 ⋅ 23# ⋅ n 0..25 18 24 Mar 2022 Giles Averay-Jones
29 433560061205001083 + 59521353 ⋅ 23# ⋅ n 0..25 18 14 Nov 2020 Akihiko Satou
30 404759382887171677 + 64189511 ⋅ 23# ⋅ n 0..25 18 15 Dec 2020 Kyle Walton
31 363522762013511273 + 71150399 ⋅ 23# ⋅ n 0..25 18 31 Jan 2021 Syracuse University
32 478057748365697207 + 39202915 ⋅ 23# ⋅ n 0..25 18 09 May 2020 Brian D. Niegocki
33 224584605939537911 + 81292139 ⋅ 23# ⋅ n 1..26 18 23 Sep 2019 Rob Gahan
34 224584605939537911 + 81292139 ⋅ 23# ⋅ n 0..25 18 23 Sep 2019 Rob Gahan
35 271702189272825977 + 67515487 ⋅ 23# ⋅ n 0..25 18 11 Aug 2018 Syracuse University
36 89937610947392099 + 78413143 ⋅ 23# ⋅ n 0..25 18 17 Nov 2018 Daniel Wimmer
37 367805997614139919 + 11897117 ⋅ 23# ⋅ n 0..25 18 01 Oct 2019 Jordan Romaidis
38 161004359399459161 + 47715109 ⋅ 23# ⋅ n 0..25 18 20 Feb 2015 Bryan Little; Outside of PrimeGrid
39 55837783597462913 + 62121807 ⋅ 23# ⋅ n 0..25 18 13 Jun 2018 Tom Greer
40 136926916457315893 + 44121555 ⋅ 23# ⋅ n 0..25 18 23 Feb 2014 Bryan Little; Outside of PrimeGrid
41 6197161881651743 + 55850603 ⋅ 23# ⋅ n 0..25 18 30 Mar 2018 Tom Greer
42 48277590120607451 + 37835074 ⋅ 23# ⋅ n 0..25 18 05 Sep 2017 Bruce E. Slade
43 142099325379199423 + 16549135 ⋅ 23# ⋅ n 0..25 18 11 Dec 2016 Koichi Soraku
44 149836681069944461 + 7725290 ⋅ 23# ⋅ n 0..25 18 03 Nov 2016 Takeshi Nakamura
45
(1st known)
43142746595714191 + 23681770 ⋅ 23# ⋅ n 0..25 18 12 Apr 2010 Benoãt Perichon
46 3486107472997423 + 1666981 ⋅ 23# ⋅ n 0..25 17 16 Mar 2012 James Fry