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:










MnStatusDetails
71312341Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 990000
B2 = 26235000
LL
StatusDateUserResidueShift
Verified2015-07-13yphysics98007BB66643DADE3035539
Verified2024-10-05arnaud98007BB66643DADE50470459
History
DateUserTypeResult
2024-10-05arnaudC-LL
98007BB66643DADE
2015-07-13yphysicsC-LL
98007BB66643DADE
2015-02-12owftheevilNF-PM1
B1=990000, B2=26235000, e=6
2015-02-08Brian BeuningNF
no factor from 2^74 to 2^75
2015-02-08Brian BeuningNF
no factor from 2^73 to 2^74
2015-01-02gcardonaNF
no factor from 2^72 to 2^73
2014-11-17VictordeHollanderNF
no factor from 2^71 to 2^72
2014-05-01HBendtzNF
no factor from 2^70 to 2^71
2012-11-15andrea.biancalanaNF
no factor from 2^69 to 2^70
2010-06-25korvaNF
no factor from 2^68 to 2^69
2010-06-22bigaldeprNF
no factor from 2^67 to 2^68
2010-06-17Per JessenNF
no factor from 2^66 to 2^67
2010-05-31sannerud.comNF
no factor from 2^65 to 2^66
2010-05-31ANONYMOUSNF
no factor from 2^64 to 2^65
2008-10-07Wojciech FlorekNF
no factor to 2^64