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

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MnStatusDetails
2153773No factors below 268
P-1
B1=2 500 000
B2=125 000 000
LL
StatusDateUserResidueShift
VerifiedGeorge Ray379A4B92AB0AE8830
Verified1999-01-29Ethan Hansen379A4B92AB0AE8831245774
Verified2018-04-09kkmrkkblmbrbk379A4B92AB0AE8831818233
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2021-02-19-Anonymous-factor ECM small0.0 % 2021-02-192021-04-20
2020-05-18Nachofactor ECM small0.0 % 2020-05-182020-07-17
History
DateUserTypeResult
2019-05-20TJAOINFno factor from 2^67 to 2^68
2018-04-09kkmrkkblmbrbkC-LL379A4B92AB0AE883
2017-12-18mikrNF-PM1B1=2500000, B2=125000000, E=12
2016-11-03Gordon SpenceNFno factor from 2^66 to 2^67
2016-04-08Jocelyn LaroucheNF-PM1B1=360000, B2=6480000, E=12
2016-03-20Jocelyn LaroucheNF-PM1B1=269641
2016-02-23Mark RoseNFno factor from 2^58 to 2^60
2015-12-30ramgeisNFno factor from 2^65 to 2^66
2015-03-22VictordeHollanderNFno factor from 2^64 to 2^65
2015-03-22VictordeHollanderNFno factor from 2^63 to 2^64
2014-10-07Jocelyn LaroucheNF-PM1B1=149801
2013-01-23dbaughNFno factor from 2^62 to 2^63
2011-01-24markrNF-PM1B1=120000, B2=2340000, E=6
2011-01-15Jocelyn LaroucheNF-PM1B1=50000
2010-12-30Jocelyn LaroucheNF-PM1B1=30000
2010-11-03Jocelyn LaroucheNF-PM1B1=20000
2009-01-07Sturle SundeNFno factor from 2^61 to 2^62
2009-01-05Sturle SundeNFno factor from 2^60 to 2^61
2003-03-07-Anonymous-NF-PM1B1=2048, B2=204800, E=12
1999-01-29Dry Creek PhotoNFno factor to 2^58
1999-01-29Dry Creek PhotoC-LL379A4B92AB0AE883