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
611531No factors below 269
P-1
B1=6 115 310
B2=183 459 300
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski24B30
VerifiedBrian HengenBBC4C679EC23A4B30
VerifiedBrian J. BeesleyBBC4C679EC23A4B30
Verified2015-04-11MadPooBBC4C679EC23A4B3596100
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2021-04-19-Anonymous-factor ECM small0.0 % 2021-04-19
2020-12-06-Anonymous-factor ECM small0.0 % 2020-12-062021-02-04
2020-12-01-Anonymous-factor ECM small0.0 % 2020-12-012021-01-30
2020-10-06-Anonymous-factor ECM small0.0 % 2020-10-062020-12-05
History
DateUserTypeResult
2018-09-17Smok_bmv NFno factor from 2^68 to 2^69
2018-09-17Smok_bmv NFno factor from 2^67 to 2^68
2018-09-17Smok_bmv NFno factor from 2^66 to 2^67
2017-07-10Smok_bmv NFno factor from 2^65 to 2^66
2017-06-19Smok_bmv NFno factor from 2^64 to 2^65
2015-11-08Sid & AndyNF-PM1B1=6115310, B2=183459300, E=12
2015-10-22Bruno VictalNF-PM1B1=1600000, B2=66000000, E=12
2015-09-28Gordon SpenceNFno factor from 2^63 to 2^64
2015-09-28Gordon SpenceNFno factor from 2^62 to 2^63
2015-07-18NRNFno factor from 2^61 to 2^62
2015-04-11MadPooC-LLBBC4C679EC23A4B3
2013-10-18David CampeauNF-PM1B1=1265000, B2=40480000, E=12
2012-08-01Jocelyn LaroucheNF-PM1B1=1223062
2012-03-10Jocelyn LaroucheNF-PM1B1=785723
2011-08-28Jocelyn LaroucheNF-PM1B1=628578
2011-07-01Jocelyn LaroucheNF-PM1B1=377147
2010-12-25Sid & AndyNFno factor from 2^60 to 2^61
2008-10-14Sturle SundeNFno factor from 2^59 to 2^60
2008-10-14Sturle SundeNFno factor from 2^58 to 2^59
2003-11-08-Anonymous-NFno factor to 2^58
2003-05-11-Anonymous-NF-PM1B1=131072, B2=13107200, E=12
2002-09-29-Anonymous-NF-PM1B1=65536, B2=6553600, E=12
2002-06-29-Anonymous-NF-PM1B1=32768, B2=3276800, E=12
2002-05-11-Anonymous-NF-PM1B1=16384, B2=1638400
2001-10-20-Anonymous-NFno factor to 2^57
2001-04-08-Anonymous-NFno factor to 2^56
2000-12-07Alex KruppaNF-PM1B1=100000, B2=4000000