Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:
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MnStatusDetails
42853367No factors below 273
P-1
B1=715 000
B2=715 000
LL
StatusDateUserResidueShift
Bad2008-05-11Clayton Smith34CCD8E6927DA15B35805250
Verified2015-10-09George WoltmanF7FB4A16A3BBE01229519588
Verified2016-09-13Mark RoseF7FB4A16A3BBE0124444305
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2016-07-10-Anonymous-LL double-check0.0 % 2016-07-102016-08-19
2016-05-30-Anonymous-LL double-check0.0 % 2016-05-302016-07-09
2016-04-19HeronatorLL double-check0.0 % 2016-04-192016-05-29
2016-03-09-Anonymous-LL double-check0.0 % 2016-03-092016-04-18
2016-01-28-Anonymous-LL double-check0.0 % 2016-01-282016-03-08
2015-12-18-Anonymous-LL double-check0.0 % 2015-12-182016-01-27
History
DateUserTypeResult
2018-12-02Random GPUsNFno factor from 2^72 to 2^73
2016-09-13Mark RoseC-LLF7FB4A16A3BBE012
2015-10-09George WoltmanC-LLF7FB4A16A3BBE012
2015-08-02tigreroarsNFno factor from 2^71 to 2^72
2015-04-18Mark RoseNFno factor from 2^70 to 2^71
2015-02-22Carsten KossendeyNFno factor from 2^69 to 2^70
2013-12-29LaurVNFno factor from 2^68 to 2^69
2008-05-10argiloC-LL34CCD8E6927DA15B
2008-04-07argiloNF-PM1B1=715000
2007-07-24smintheusNFno factor to 2^68