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
3197143No factors below 269
P-1
B1=4 000 000
B2=150 000 000
LL
StatusDateUserResidueShift
VerifiedThomas Honold3978007062FEC7330
Verified1999-06-06Rui Robert3978007062FEC7332181285
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2021-02-18-Anonymous-factor ECM small0.0 % 2021-02-182021-04-19
History
DateUserTypeResult
2021-07-08TJAOINFno factor from 2^68 to 2^69
2019-11-26mikrNF-PM1B1=4000000, B2=150000000, E=12
2018-12-17TJAOINFno factor from 2^67 to 2^68
2018-07-03Jocelyn LaroucheNF-PM1B1=430000, B2=4300000, E=6
2017-04-30Gordon SpenceNFno factor from 2^66 to 2^67
2015-06-21ThaNFno factor from 2^65 to 2^66
2015-02-15VictordeHollanderNFno factor from 2^64 to 2^65
2015-02-15VictordeHollanderNFno factor from 2^63 to 2^64
2013-01-06Squeeky_SquirrelNF-PM1B1=215000, B2=6235000, E=12
2013-01-03dbaughNFno factor from 2^62 to 2^63
2011-10-10Grant McCrackenNFno factor from 2^61 to 2^62
2009-04-07S485122NFno factor from 2^60 to 2^61
2004-02-14-Anonymous-NF-PM1B1=2048, B2=204800
2001-07-17David CampeauNFno factor to 2^60
1999-06-06-Anonymous-C-LL3978007062FEC733