History of the largest known CPAP-3
(with at least 2,500 digits)
Primes n's Digits When Discoverer(s)

17484430616589 • 2⁵⁴²⁰¹ − 7 + 6 • n 0..2 16330 26 Jun 2024 Serge Batalov, EMsieve, OpenPFGW, CM

2494779036241 • 2⁴⁹⁸⁰⁰ + 1 + 6 • n 0..2 15004 16 Apr 2022 Serge Batalov

664342014133 • 2³⁹⁸⁴⁰ − 59 + 30 • n 0..2 12005 27 Apr 2020 Serge Batalov

3428602715439 • 2³⁵⁶⁷⁸ + 1 + 6 • n 0..2 10753 25 Apr 2020 Serge Batalov

2683143625525 • 2³⁵¹⁷⁶ + 1 + 6 • n 0..2 10602 31 Dec 2019 Gerd Lampbrecht, Norman Luhn

1213266377 • 2³⁵⁰⁰⁰ − 1 + 2430 • n 0..2 10546 19 Mar 2014 David Broadhurst, PrimeForm, Primo

1043085905 • 2³⁵⁰⁰⁰ − 18199 + 18198 • n 0..2 10546 21 Feb 2014 David Broadhurst, PrimeForm, Primo

109061779 • 2³⁵⁰⁰³ − 1 + 5928 • n 0..2 10545 1 Feb 2014 David Broadhurst, PrimeForm, Primo

350049825 • 2³⁵⁰⁰⁰ − 1 + 3852 • n 0..2 10545 11 Jan 2014 David Broadhurst, PrimeForm, Primo

146462479 • 2³⁵⁰⁰¹ − 8767 + 8766 • n 0..2 10545 17 Dec 2013 David Broadhurst, PrimeForm, Primo

19067408 • 2³³³³³ − 12539 + 6270 • n 0..2 10042 5 Nov 2013 Jens Kruse Andersen, Pierre Cami, Ken Davis, NewPGen, PrimeForm, Primo

90568041 • 2²⁵⁰⁷⁷ − 9001 + 4500 • n 0..2 7557 12 Nov 2013 Pierre Cami, PrimeForm, Primo

49787793 • 2²⁵⁰⁰³ − 1 + 11634 • n 0..2 7535 31 Oct 2013 David Broadhurst, Bouk de Water, PrimeForm, Primo

368523657 • 2²⁵⁰⁰⁰ − 14161 + 7080 • n 0..2 7535 27 Oct 2013 David Broadhurst, Bouk de Water, PrimeForm, Primo

122248047 • 2²⁵⁰⁰¹ − 15661 + 7830 • n 0..2 7535 21 Oct 2013 David Broadhurst, Bouk de Water, PrimeForm, Primo

192335307 • 2²⁵⁰⁰⁰ − 5131 + 5130 • n 0..2 7535 5 Sep 2013 David Broadhurst, Bouk de Water, PrimeForm, Primo

87 • 2²⁴⁵⁸² − 1 + 1290 • n 0..2 7402 19 Feb 1999 Torbjörn Alm, Hans Rosenthal, Jens Kruse Andersen and Tom Kuechler

35734184537 • 11677# / 3 − 9 + 6 • n 1..3 5002 22 Jun 2024 Serge Batalov; EMsieve; Primo

35734184537 • 11677# / 3 − 9 + 6 • n 0..2 5002 22 Jun 2024 Serge Batalov; EMsieve; Primo

62399583639 • 9923# − 3399421607 + 30 • n 1..3 4285 2 Nov 2021 Serge Batalov

62399583639 • 9923# − 3399421607 + 30 • n 0..2 4285 2 Nov 2021 Serge Batalov

62753735335 • 7919# + 3399421577 + 30 • n 1..3 3404 14 Oct 2021 Serge Batalov

62753735335 • 7919# + 3399421577 + 30 • n 0..2 3404 14 Oct 2021 Serge Batalov

121152729080 • 7019# / 1729 + 1 + 6 • n 1..3 3025 14 Oct 2019 Gerd Lamprecht & Norman Luhn, PrimeForm, Primo

121152729080 • 7019# / 1729 + 1 + 6 • n 0..2 3025 14 Oct 2019 Gerd Lamprecht & Norman Luhn, PrimeForm, Primo

55072065656 • 7013# + 9843049 + 30 • n 1..3 3024 17 Jul 2018 Gerd Lamprecht, APSieve, PrimeForm, Primo

55072065656 • 7013# + 9843049 + 30 • n 0..2 3024 17 Jul 2018 Gerd Lamprecht, APSieve, PrimeForm, Primo

62037039993 • 7001# + 7811555723 + 30 • n 1..3 3021 25 Oct 2013 David Broadhurst, PrimeForm, Primo

62037039993 • 7001# + 7811555723 + 30 • n 0..2 3021 25 Oct 2013 David Broadhurst, PrimeForm, Primo

50946848056 • 7001# + 7811555723 + 30 • n 1..3 3021 25 Oct 2013 David Broadhurst, PrimeForm, Primo

50946848056 • 7001# + 7811555723 + 30 • n 0..2 3021 25 Oct 2013 David Broadhurst, PrimeForm, Primo

26997933312 • 7001# + 7811555663 + 30 • n 1..3 3020 21 Oct 2013 David Broadhurst, PrimeForm, Primo

26997933312 • 7001# + 7811555663 + 30 • n 0..2 3020 21 Oct 2013 David Broadhurst, PrimeForm, Primo

25506692100 • 7001# + 7811555693 + 30 • n 1..3 3020 21 Oct 2013 David Broadhurst, PrimeForm, Primo

25506692100 • 7001# + 7811555693 + 30 • n 0..2 3020 21 Oct 2013 David Broadhurst, PrimeForm, Primo

198267970563 • 6007# + 7811555663 + 30 • n 1..3 2575 16 Oct 2013 David Broadhurst, PrimeForm, Primo

198267970563 • 6007# + 7811555663 + 30 • n 0..2 2575 16 Oct 2013 David Broadhurst, PrimeForm, Primo

153104252515 • 6007# + 7811555663 + 30 • n 1..3 2575 13 Oct 2013 David Broadhurst, PrimeForm, Primo

153104252515 • 6007# + 7811555663 + 30 • n 0..2 2575 13 Oct 2013 David Broadhurst, PrimeForm, Primo

Primes	n's	Digits	When	Discoverer(s)
History of the largest known CPAP-3 (with at least 2,500 digits)
17484430616589 • 2⁵⁴²⁰¹ − 7 + 6 • n	0..2	16330	26 Jun 2024	Serge Batalov, EMsieve, OpenPFGW, CM
2494779036241 • 2⁴⁹⁸⁰⁰ + 1 + 6 • n	0..2	15004	16 Apr 2022	Serge Batalov
664342014133 • 2³⁹⁸⁴⁰ − 59 + 30 • n	0..2	12005	27 Apr 2020	Serge Batalov
3428602715439 • 2³⁵⁶⁷⁸ + 1 + 6 • n	0..2	10753	25 Apr 2020	Serge Batalov
2683143625525 • 2³⁵¹⁷⁶ + 1 + 6 • n	0..2	10602	31 Dec 2019	Gerd Lampbrecht, Norman Luhn
1213266377 • 2³⁵⁰⁰⁰ − 1 + 2430 • n	0..2	10546	19 Mar 2014	David Broadhurst, PrimeForm, Primo
1043085905 • 2³⁵⁰⁰⁰ − 18199 + 18198 • n	0..2	10546	21 Feb 2014	David Broadhurst, PrimeForm, Primo
109061779 • 2³⁵⁰⁰³ − 1 + 5928 • n	0..2	10545	1 Feb 2014	David Broadhurst, PrimeForm, Primo
350049825 • 2³⁵⁰⁰⁰ − 1 + 3852 • n	0..2	10545	11 Jan 2014	David Broadhurst, PrimeForm, Primo
146462479 • 2³⁵⁰⁰¹ − 8767 + 8766 • n	0..2	10545	17 Dec 2013	David Broadhurst, PrimeForm, Primo
19067408 • 2³³³³³ − 12539 + 6270 • n	0..2	10042	5 Nov 2013	Jens Kruse Andersen, Pierre Cami, Ken Davis, NewPGen, PrimeForm, Primo
90568041 • 2²⁵⁰⁷⁷ − 9001 + 4500 • n	0..2	7557	12 Nov 2013	Pierre Cami, PrimeForm, Primo
49787793 • 2²⁵⁰⁰³ − 1 + 11634 • n	0..2	7535	31 Oct 2013	David Broadhurst, Bouk de Water, PrimeForm, Primo
368523657 • 2²⁵⁰⁰⁰ − 14161 + 7080 • n	0..2	7535	27 Oct 2013	David Broadhurst, Bouk de Water, PrimeForm, Primo
122248047 • 2²⁵⁰⁰¹ − 15661 + 7830 • n	0..2	7535	21 Oct 2013	David Broadhurst, Bouk de Water, PrimeForm, Primo
192335307 • 2²⁵⁰⁰⁰ − 5131 + 5130 • n	0..2	7535	5 Sep 2013	David Broadhurst, Bouk de Water, PrimeForm, Primo
87 • 2²⁴⁵⁸² − 1 + 1290 • n	0..2	7402	19 Feb 1999	Torbjörn Alm, Hans Rosenthal, Jens Kruse Andersen and Tom Kuechler
35734184537 • 11677# / 3 − 9 + 6 • n	1..3	5002	22 Jun 2024	Serge Batalov; EMsieve; Primo
35734184537 • 11677# / 3 − 9 + 6 • n	0..2	5002	22 Jun 2024	Serge Batalov; EMsieve; Primo
62399583639 • 9923# − 3399421607 + 30 • n	1..3	4285	2 Nov 2021	Serge Batalov
62399583639 • 9923# − 3399421607 + 30 • n	0..2	4285	2 Nov 2021	Serge Batalov
62753735335 • 7919# + 3399421577 + 30 • n	1..3	3404	14 Oct 2021	Serge Batalov
62753735335 • 7919# + 3399421577 + 30 • n	0..2	3404	14 Oct 2021	Serge Batalov
121152729080 • 7019# / 1729 + 1 + 6 • n	1..3	3025	14 Oct 2019	Gerd Lamprecht & Norman Luhn, PrimeForm, Primo
121152729080 • 7019# / 1729 + 1 + 6 • n	0..2	3025	14 Oct 2019	Gerd Lamprecht & Norman Luhn, PrimeForm, Primo
55072065656 • 7013# + 9843049 + 30 • n	1..3	3024	17 Jul 2018	Gerd Lamprecht, APSieve, PrimeForm, Primo
55072065656 • 7013# + 9843049 + 30 • n	0..2	3024	17 Jul 2018	Gerd Lamprecht, APSieve, PrimeForm, Primo
62037039993 • 7001# + 7811555723 + 30 • n	1..3	3021	25 Oct 2013	David Broadhurst, PrimeForm, Primo
62037039993 • 7001# + 7811555723 + 30 • n	0..2	3021	25 Oct 2013	David Broadhurst, PrimeForm, Primo
50946848056 • 7001# + 7811555723 + 30 • n	1..3	3021	25 Oct 2013	David Broadhurst, PrimeForm, Primo
50946848056 • 7001# + 7811555723 + 30 • n	0..2	3021	25 Oct 2013	David Broadhurst, PrimeForm, Primo
26997933312 • 7001# + 7811555663 + 30 • n	1..3	3020	21 Oct 2013	David Broadhurst, PrimeForm, Primo
26997933312 • 7001# + 7811555663 + 30 • n	0..2	3020	21 Oct 2013	David Broadhurst, PrimeForm, Primo
25506692100 • 7001# + 7811555693 + 30 • n	1..3	3020	21 Oct 2013	David Broadhurst, PrimeForm, Primo
25506692100 • 7001# + 7811555693 + 30 • n	0..2	3020	21 Oct 2013	David Broadhurst, PrimeForm, Primo
198267970563 • 6007# + 7811555663 + 30 • n	1..3	2575	16 Oct 2013	David Broadhurst, PrimeForm, Primo
198267970563 • 6007# + 7811555663 + 30 • n	0..2	2575	16 Oct 2013	David Broadhurst, PrimeForm, Primo
153104252515 • 6007# + 7811555663 + 30 • n	1..3	2575	13 Oct 2013	David Broadhurst, PrimeForm, Primo
153104252515 • 6007# + 7811555663 + 30 • n	0..2	2575	13 Oct 2013	David Broadhurst, PrimeForm, Primo