History Of Additions

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2023
July 02: sexy CPAP-4 record with 3207 digits by Ken Davis

2022
May 4: Cousin Primes-record with 51934 digits by Serge Batalov
April 16: (sexy) CPAP-3 with 15004 digits by Serge Batalov
January 31: CPAP-5-record with 1805 digits by Serge Batalov

2021
December 9: the 3rd known CPAP-10 with 121 digits by Serge Batalov
November 26: CPAP-5 with 1084 digits by Serge Batalov
November 22: CPAP-7 record with 466 digits by Serge Batalov
November 20: CPAP-9 record with 167 digits by Serge Batalov
November 15: CPAP-8 record with 272 digits by Serge Batalov; two CPAP-7 records with 271 and 272 digits by Serge Batalov
November 13: CPAP-6 record with 1012 digits by Serge Batalov
November 07: CPAP-6 record with 581 digits by Serge Batalov
November 06: CPAP-4 record with 4285 digits by Serge Batalov
October 18: Cousin Prime record with 50539 digits by Peter Kaiser, BLS prove
October 15:
CPAP-3 record with 12005 digits by Serge Batalov
CPAP-3 record with 10753 digits by Serge Batalov
CPAP-3 record with 10602 digits by Norman Luhn & Gerd Lampbrecht
CPAP-4 record with 3404 digits by Serge Batalov
sexy CPAP-3 record with 10753 digits by Serge Batalov
sexy CPAP-3 record with 10602 digits by Norman Luhn & Gerd Lampbrecht, prime certifications on factordb
sexy CPAP-3 record with 10015 digits by Peter Kaiser, prime certifications on factordb

2019
October 11: New sexy and general CPAP-4 record with 3025 digits by Norman Luhn & Gerd Lamprecht, PrimeForm, Primo.
October 7: New sexy CPAP-3 record with 6701 digits by Norman Luhn & Gerd Lamprecht, APSieve, Primo.
October 4: New sexy CPAP-4 record with 2053 digits by Ken Davis, APTreeSieve, PrimeForm, Primo.
October 1: New sexy CPAP-3 record with 6180 digits by Ken Davis, APTreeSieve, PrimeForm.
September 11: New sexy CPAP-4 record with 2001 digits by Gerd Lamprecht, Primo.
August 13: New sexy CPAP-3 record with 6116 digits by Gerd Lamprecht, APSieve, PrimeForm, Primo.
June 24: New sexy CPAP-4 record with 1534 digits by Peter Kaiser.
May 13: New sexy CPAP-3 record with 6031 digits by Peter Kaiser.
May 11: New sexy CPAP-4 record with 1138 digits by Marek Hubal, PrimeForm, Primo.

2018
November 11: Smallest known CPAP-7 with 23 digits by Paul Zimmermann.
September 17: New sexy CPAP-3 record with 5320 digits by Gerd Lamprecht, APSieve, PrimeForm, Primo.
September 15: Smallest known CPAP-7 with 24 digits by Paul Zimmermann.
September 7: New sexy CPAP-4 record with 1034 digits by Gerd Lamprecht, APSieve, PrimeForm, Primo.
August 24: A second smallest known CPAP-7 with 25 digits by Paul Zimmermann.
August 3: Smallest known CPAP-7 with 26, again 26 and then 25 digits by Paul Zimmermann.
July 27: Smallest known CPAP-7 with 27 and again 27 digits by Paul Zimmermann.
July 20: Smallest known CPAP-7 with 30, 30, 28, 28 and finally 27 digits by Paul Zimmermann.
July 18: New CPAP-5 record with 1290 digits by Norman Luhn, Gerd Lamprecht, APSieve, PrimeForm, Primo.
July 17: New CPAP-4 record with 3024 digits by Gerd Lamprecht, APSieve, PrimeForm, Primo.
July 13: Smallest known CPAP-7 with 30 digits by Paul Zimmermann.
July 6: A second smallest known CPAP-7 with 31 digits by Paul Zimmermann.
July 5: Smallest known CPAP-7 with 31 digits by Paul Zimmermann.
July 4: A third smallest known CPAP-7 with 32 digits by Paul Zimmermann.
July 1: A second smallest known CPAP-7 with 32 digits by Paul Zimmermann.
June 27: Smallest known CPAP-7 with 32 digits by Paul Zimmermann.
May 8: New CPAP-6 record with 427 digits by Gerd Lamprecht, APSieve, PrimeForm, Primo.

2014
March 19: A second CPAP-3 record with 10546 digits by David Broadhurst, PrimeForm, Primo.
February 21: New CPAP-3 record with 10546 digits by David Broadhurst, PrimeForm, Primo.
February 1: A third CPAP-3 record with 10545 digits by David Broadhurst, PrimeForm, Primo.
January 11: A second CPAP-3 record with 10545 digits by David Broadhurst, PrimeForm, Primo.

2013
December 17: New CPAP-3 record with 10545 digits by David Broadhurst, PrimeForm, Primo.
November 5: New CPAP-3 record with 10042 digits by Jens Kruse Andersen, Pierre Cami, Ken Davis, NewPGen, PrimeForm, Primo.
November 1: New CPAP-5 record with 1209 digits by David Broadhurst, PrimeForm, Primo.
October 31: A third CPAP-3 record with 7535 digits by David Broadhurst, Bouk de Water, PrimeForm, Primo.
October 27: A second CPAP-3 record with 7535 digits by David Broadhurst, Bouk de Water, PrimeForm, Primo.
October 25: A second CPAP-4 record with 3021 digits by David Broadhurst, PrimeForm, Primo.
October 25: New CPAP-4 record with 3021 digits by David Broadhurst, PrimeForm, Primo.
October 23: A second CPAP-4 record with 3020 digits by David Broadhurst, PrimeForm, Primo.
October 21: New CPAP-4 record with 3020 digits by David Broadhurst, PrimeForm, Primo.
October 21: New CPAP-3 record with 7535 digits by David Broadhurst, Bouk de Water, PrimeForm, Primo.
October 16: A second CPAP-4 record with 2575 digits by David Broadhurst, PrimeForm, Primo.
October 13: New CPAP-4 record with 2575 digits by David Broadhurst, PrimeForm, Primo.
October 12: A second CPAP-4 record with 2574 digits by David Broadhurst, PrimeForm, Primo.
October 10: New CPAP-4 record with 2574 digits by David Broadhurst, PrimeForm, Primo.

2012
December 10: New CPAP-4 record with 2148 digits by Jim Fougeron, Primo.

2008
December 8: A second CPAP-10 record with 93 digits by Manfred Toplic, CP10. 10 years after the first.

2007
December 26: New CPAP-7 record with 266 digits by Jens Kruse Andersen.
November 12: New CPAP-4 record with 1777 digits and record difference 2880 by Ken Davis, NewPGen, Primo.
October 1: CPAP-3 record for probable primes allowed with 10042 digits by Jens Kruse Andersen, Ken Davis, NewPGen, PrimeForm.
January 7: New sections: The largest known CPAP-k for each k and CPAP-2.

2006
No new records.

2005
March 19: New CPAP-9 record with 101 digits (same as before) by Hans Rosenthal & Jens Kruse Andersen.
February 27: New CPAP-3 record with 7535 digits by David Broadhurst, François Morain, FastECPP, PrimeForm.

2004
December 31: New CPAP-5 with record difference 2310 by Jim Fougeron, Primo.
December 3: New CPAP-4 with record difference 2310 by Jens Kruse Andersen, PrimeForm, Primo.
December 1: New CPAP-4 with record difference 2004 by Jim Fougeron.
November 30: New record table with The largest known CPAP-k difference, containing new records for CPAP-3, -5, -6 and -7 by Torbjörn Alm & Jens Kruse Andersen.
November 18: New CPAP-3 record with 7402 digits.
November 18: This news section is started (this page opened September 5 2003).

Created and maintained by Jens Kruse Andersen, updated by Norman Luhn