History of the largest known CPAP-5
(with at least 300 digits)
Primes n's Digits When Discoverer(s)
2738129459017 • 4211# + 3399421517 + 30 • n 0..4 1805 31 Jan 2022 Serge Batalov
652229318541 • 3527# + 3399421517 + 30 • n 0..4 1504 13 Oct 2021 Serge Batalov
449209457832 • 3307# + 1633050283 + 30 • n 0..4 1408 12 Oct 2021 Serge Batalov
2746496109133 • 3001# + 26891 + 30 • n 0..4 1290 9 Oct 2021 Norman Luhn, Gerd Lamprecht, APSieve, PrimeForm, Primo
406463527990 • 2801# + 1633050283 + 30 • n 0..4 1209 1 Nov 2013 David Broadhurst, PrimeForm, Primo
4480408177865 • 2539# + 3399421517 + 30 • n 0..4 1084 26 Nov 2021 Serge Batalov
993530619517 • 2503# + 1633050253 + 30 • n 0..4 1073 20 Dec 2013 David Broadhurst, PrimeForm, Primo
495690450643 • 2503# + 1633050283 + 30 • n 0..4 1072 20 Nov 2013 David Broadhurst, PrimeForm, Primo
150822742857 • 2503# + 1633050253 + 30 • n 0..4 1072 19 Nov 2013 David Broadhurst, PrimeForm, Primo
94807777362 • 2503# + 1633050253 + 30 • n 0..4 1072 21 Nov 2013 David Broadhurst, PrimeForm, Primo
142661157626 • 2411# + 71427757 + 30 • n 0..4 1038 10 May 2002 Jim Fougeron, Primo
533098369554 • 2357# + 3399421517 + 30 • n 1..5 1012 13 Nov 2021 Serge Batalov
533098369554 • 2357# + 3399421517 + 30 • n 0..4 1012 13 Nov 2021 Serge Batalov
9400734826 • 1499# + x632 + 2310 • n 0..4 645 31 Dec 2004 Jim Fougeron, Primo
357807940468 • 1361# + 3399421517 + 30 • n 1..5 581 7 Nov 2021 Serge Batalov
357807940468 • 1361# + 3399421517 + 30 • n 0..4 581 7 Nov 2021 Serge Batalov
145706980166212 • 1069# + x253 + 210 • n 4..8 466 21 Nov 2021 Serge Batalov
145706980166212 • 1069# + x253 + 210 • n 3..7 466 21 Nov 2021 Serge Batalov
145706980166212 • 1069# + x253 + 210 • n 2..6 466 21 Nov 2021 Serge Batalov
386140564676 • 1000# + 26861 + 30 • n 1..5 427 8 May 2018 Gerd Lamprecht, APSieve, PrimeForm, Primo
386140564676 • 1000# + 26861 + 30 • n 0..4 427 8 May 2018 Gerd Lamprecht, APSieve, PrimeForm, Primo
60677170100 • 859# + 1204600427 + 30 • n 0..4 370 2003 Jens Kruse Andersen, Jim Fougeron, Primo
51892636811 • 859# + 1204600427 + 30 • n 0..4 370 2003 Jens Kruse Andersen, Jim Fougeron, Primo
44770344615 • 859# + 1204600427 + 30 • n 1..5 370 2003 Jens Kruse Andersen, Jim Fougeron, Primo
44770344615 • 859# + 1204600427 + 30 • n 0..4 370 2003 Jens Kruse Andersen, Jim Fougeron, Primo
2121022995 • 859# + 1204600427 + 30 • n 1..5 369 2003 Jim Fougeron, VFYPR
2121022995 • 859# + 1204600427 + 30 • n 0..4 369 2003 Jim Fougeron, VFYPR
200605912613 • 700# + 2437704499910036551539466113407 + 30 • n 1..5 301 2003 Torbjörn Alm & Jens Kruse Andersen, VFYPR
200605912613 • 700# + 2437704499910036551539466113407 + 30 • n 0..4 301 2003 Torbjörn Alm & Jens Kruse Andersen, VFYPR

Big constants

x253 = 1161759929890532047130480253835658739849997983625515667103047375128118119991131225955
0734373874520536148519300924327947507674746679858816780182478724431966587843672408773
388445788142740274329621811879827349575247851843514012399313201211101277175684636727

x632 = 2945339776545027154539918808526655368252378620585099496385650600431498269661083903162110429127353107760157
5722896273706142925617722759452435429488328389328281466289664367352954006161792070955769212597757921750265
7961793687809965941432837668975308693630297479962123616982055909919099170254969337754185770956958979321362
7618473506498212549583475520940170609152997656163627242028405951204832924677679233522715633270907575099531
8190876684457108535835673100713235902439791043089273743933820748006776935061385300428903923277275802622905
803642678199081441811796580012014897740453191957526038333320588240996195703518136355252551601080488639