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
2018447No factors below 268
P-1
B1=10 000 000
B2=350 000 000
LL
StatusDateUserResidueShift
VerifiedBrian Doherty44E3F1D6EFB854F50
Verified1999-01-17Guy C M Roberts44E3F1D6EFB854F51883051
Verified2016-07-15Mark Rose44E3F1D6EFB854F5827168
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2021-03-17-Anonymous-factor ECM small0.0 % 2021-03-17
2021-01-17-Anonymous-factor ECM small0.0 % 2021-01-172021-03-18
History
DateUserTypeResult
2020-10-10Bruno VictalNF-PM1B1=10000000, B2=350000000
2019-03-18chuenkitNFno factor from 2^67 to 2^68
2019-02-09mikrNF-PM1B1=4000000, B2=200000000, E=12
2016-07-16Gordon SpenceNFno factor from 2^66 to 2^67
2016-07-15Mark RoseC-LL44E3F1D6EFB854F5
2016-02-23Mark RoseNFno factor from 2^58 to 2^60
2015-10-28ramgeisNFno factor from 2^65 to 2^66
2015-03-15VictordeHollanderNFno factor from 2^64 to 2^65
2015-03-15VictordeHollanderNFno factor from 2^63 to 2^64
2013-10-16David CampeauNF-PM1B1=580000, B2=15080000, E=12
2013-02-11dbaughNFno factor from 2^62 to 2^63
2012-02-04Sebastian HornbostelNFno factor from 2^61 to 2^62
2010-12-07Jocelyn LaroucheNF-PM1B1=201844
2009-01-02Sturle SundeNFno factor from 2^60 to 2^61
2003-02-02Mr. P-1NF-PM1B1=30000, B2=547500, E=12
2002-05-05Jocelyn LaroucheNF-PM1B1=3000, B2=3000
2002-04-28Jocelyn LaroucheNF-PM1B1=2000, B2=2000
1999-01-17-Anonymous-C-LL44E3F1D6EFB854F5
1999-01-02-Anonymous-NFno factor to 2^58