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
81181No factors below 266
P-1
B1=100 000 000
B2=2 000 000 000
LL
StatusDateUserResidueShift
VerifiedUnknown3AEF0
VerifiedRobert Clark78ED53F4484DBAEF0
VerifiedBrian J. Beesley78ED53F4484DBAEF0
Verified2015-04-11MadPoo78ED53F4484DBAEF66855
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2019-06-18-Anonymous-factor ECM small0.0 % 2019-10-052019-12-04
2019-06-16-Anonymous-factor ECM smallC1S20.0 % 2019-10-282019-09-24
2019-06-13-Anonymous-factor ECM small0.0 % 2019-06-132019-08-12
History
DateUserTypeResult
2020-10-07YxinityNFno factor from 2^65 to 2^66
2020-10-05YxinityNFno factor from 2^65 to 2^66
2018-12-15YxinityNFno factor from 2^64 to 2^65
2018-12-14YxinityNFno factor from 2^64 to 2^65
2017-01-09snme2pm1NFno factor from 2^63 to 2^64
2016-02-23LaurVNFno factor from 2^57 to 2^58
2016-02-23LaurVNFno factor from 2^58 to 2^59
2016-02-08snme2pm1NFno factor from 2^62 to 2^63
2015-04-11MadPooC-LL78ED53F4484DBAEF
2014-07-01Sid & AndyNFno factor from 2^61 to 2^62
2013-10-28lycornNFno factor from 2^60 to 2^61
2012-08-29LaurVNF-PM1B1=100000000, B2=2000000000, E=12
2009-02-06Sturle SundeNFno factor from 2^59 to 2^60
2003-12-23-Anonymous-NF-PM1B1=16777216, B2=1677721600, E=12
2003-11-28-Anonymous-NF-PM1B1=8388608, B2=838860800, E=12
2003-08-25-Anonymous-NF-PM1B1=4194304, B2=419430400, E=12
2003-06-17-Anonymous-NF-PM1B1=2097152, B2=209715200, E=12
2003-05-11-Anonymous-NF-PM1B1=1048576, B2=104857600, E=12
2003-04-03-Anonymous-NF-PM1B1=262144, B2=26214400, E=30
2003-02-02-Anonymous-NF-PM1B1=131072, B2=13107200, E=30
2002-09-29-Anonymous-NFno factor to 2^57
2002-07-20-Anonymous-NF-PM1B1=65536, B2=6553600, E=12
2002-06-09-Anonymous-NF-PM1B1=32768, B2=3276800
2001-08-18Alex KruppaNF-PM1B1=1000000, B2=100000000
2001-04-29-Anonymous-NF-PM1B1=100000, B2=10000000
2000-11-25-Anonymous-NFno factor to 2^56
2000-04-12-Anonymous-NFno factor to 2^54
1999-10-21-Anonymous-NFno factor from 2^52 to 2^53