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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Exponent Range:
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MnStatusDetails
554237No factors below 267
P-1
B1=10 000 000
B2=400 000 000
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski3BC90
VerifiedCharles F. Kerchner IIID4017452D302FBC90
Verified2002-05-18Dennis PopeD4017452D302FBC995848
Verified2015-04-11MadPooD4017452D302FBC9477802
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2021-04-07Barry Boonefactor ECM small0.0 % 2021-04-092021-06-08
2021-03-15-Anonymous-factor ECM small0.0 % 2021-03-152021-05-14
2021-02-23-Anonymous-factor ECM small0.0 % 2021-02-232021-04-24
History
DateUserTypeResult
2020-08-24YxinityNFno factor from 2^66 to 2^67
2019-04-07alexNF-PM1B1=10000000, B2=400000000, E=12
2018-06-04chuenkitNFno factor from 2^65 to 2^66
2017-09-14BloodERazorNFno factor from 2^64 to 2^65
2016-02-23Mark RoseNFno factor from 2^60 to 2^61
2016-02-23Mark RoseNFno factor from 2^58 to 2^60
2015-11-04Sid & AndyNF-PM1B1=5542370, B2=166271100, E=12
2015-10-21Bruno VictalNF-PM1B1=1600000, B2=66000000, E=12
2015-09-11Gordon SpenceNFno factor from 2^63 to 2^64
2015-09-11Gordon SpenceNFno factor from 2^62 to 2^63
2015-07-10NRNFno factor from 2^61 to 2^62
2015-04-11MadPooC-LLD4017452D302FBC9
2013-10-10David CampeauNF-PM1B1=1350000, B2=36450000, E=12
2012-07-14Jocelyn LaroucheNF-PM1B1=1108474
2012-03-05Jocelyn LaroucheNF-PM1B1=892615
2011-08-01Jocelyn LaroucheNF-PM1B1=714092
2011-06-26Jocelyn LaroucheNF-PM1B1=428455
2011-06-24Jocelyn LaroucheNF-PM1B1=400000
2003-12-13-Anonymous-NFno factor to 2^58
2003-05-11-Anonymous-NF-PM1B1=131072, B2=13107200, E=12
2002-09-07-Anonymous-NF-PM1B1=65536, B2=6553600, E=12
2002-06-29-Anonymous-NF-PM1B1=32768, B2=3276800, E=12
2002-05-18-Anonymous-C-LLD4017452D302FBC9
2002-05-05-Anonymous-NF-PM1B1=16384, B2=1638400
2002-01-15-Anonymous-NFno factor to 2^57
2001-04-08-Anonymous-NFno factor to 2^56
2000-12-07Alex KruppaNF-PM1B1=100000, B2=4000000
2000-03-27-Anonymous-NFno factor to 2^54