Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:
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MnStatusDetails
1971119No factors below 271
P-1
B1=1 971 119
B2=246 389 875
LL
StatusDateUserResidueShift
VerifiedPeter Royal25EF0B2B4C882B6F0
Verified1999-01-17Paul Shimmin25EF0B2B4C882B6F1039246
Verified2015-07-03MadPoo25EF0B2B4C882B6F1269797
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2021-01-17-Anonymous-factor ECM small0.0 % 2021-01-172021-03-18
2018-10-07Metalfactor ECM small0.0 % 2018-10-072019-04-05
History
DateUserTypeResult
2018-11-26Jocelyn LaroucheNF-PM1B1=1971119, B2=246389875, E=12
2018-09-18Jocelyn LaroucheNF-PM1B1=1971119, B2=197111900, E=12
2018-06-11ramgeisNFno factor from 2^70 to 2^71
2018-04-07YxinityNFno factor from 2^69 to 2^70
2018-04-07YxinityNFno factor from 2^68 to 2^69
2018-04-07YxinityNFno factor from 2^67 to 2^68
2018-04-07YxinityNFno factor from 2^66 to 2^67
2018-03-05Jocelyn LaroucheNF-PM1B1=1971119, B2=120000000, E=12
2018-02-14Jocelyn LaroucheNF-PM1B1=1971119, B2=60000000, E=12
2018-01-21Jocelyn LaroucheNF-PM1B1=1971119, B2=30000000, E=12
2016-02-23Mark RoseNFno factor from 2^61 to 2^62
2016-02-23Mark RoseNFno factor from 2^58 to 2^60
2016-02-23Mark RoseNFno factor from 2^62 to 2^63
2015-09-09ramgeisNFno factor from 2^65 to 2^66
2015-07-03MadPooC-LL25EF0B2B4C882B6F
2015-03-22lycornNFno factor from 2^64 to 2^65
2015-03-22lycornNFno factor from 2^63 to 2^64
2011-08-27GrunwalderGIMPNFno factor from 2^1 to 2^63
2011-03-31kurlyNF-PM1B1=1000000, B2=30000000
2009-12-31S485122NFno factor from 2^60 to 2^61
1999-01-17-Anonymous-C-LL25EF0B2B4C882B6F
1998-12-27-Anonymous-NFno factor to 2^58