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
56850553No factors below 276
P-1
B1=570 000
B2=12 255 000
LL
StatusDateUserResidueShift
Verified2014-02-26John FitchA3A5689DB1CD7A5046306482
Verified2021-06-13Craig Chadwick EsqA3A5689DB1CD7A5050953723
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2020-06-27xartleLL double-checkLL0.0 % 2020-07-102020-08-19
2020-04-15-Anonymous-LL double-checkLL79.2 % 2020-05-172020-06-26
2020-02-05-Anonymous-LL double-check0.0 % 2020-02-052020-03-16
2019-10-16-Anonymous-LL double-check0.0 % 2019-10-162019-11-26
History
DateUserTypeResult
2021-06-13Craig Chadwick EsqC-LLA3A5689DB1CD7A50
2020-11-07-Anonymous-NFno factor from 2^75 to 2^76
2020-10-17-Anonymous-NFno factor from 2^74 to 2^75
2018-11-26chuenkitNFno factor from 2^73 to 2^74
2016-02-23Mark RoseNFno factor from 2^58 to 2^63
2014-02-26John FitchC-LLA3A5689DB1CD7A50
2014-01-16kdgehmanNFno factor from 2^72 to 2^73
2012-06-04Sebastian HornbostelNF-PM1B1=570000, B2=12255000, E=6
2011-11-25XyzzyNFno factor from 2^71 to 2^72
2011-11-25XyzzyNFno factor from 2^70 to 2^71
2011-11-25XyzzyNFno factor from 2^69 to 2^70
2011-07-23Thure DuehrsenNFno factor from 2^68 to 2^69
2009-11-29michmichmichNFno factor from 2^67 to 2^68
2008-08-23Sturle SundeNFno factor from 2^66 to 2^67
2008-08-17Sturle SundeNFno factor from 2^65 to 2^66
2008-08-17Sturle SundeNFno factor from 2^64 to 2^65
2008-08-16Sturle SundeNFno factor from 2^63 to 2^64
2002-11-09-Anonymous-NFno factor to 2^58
2001-09-30-Anonymous-NFno factor to 2^57
2000-06-28-Anonymous-NFno factor to 2^56
2000-03-08-Anonymous-NFno factor to 2^54
2000-01-19-Anonymous-NFno factor to 2^53
1999-12-23-Anonymous-NFno factor to 2^53