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
37000303Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 271
P-1
B1 = 1600000
B2 = 51000000
LL
StatusDateUserResidueShift
Verifiedjohn rheinstein9550CA9A7CBF5C5D15523959
Verified2015-11-24Alexander Dubrovin9550CA9A7CBF5C5D27696352
History
DateUserTypeResult
2020-09-23-Anonymous-NF
no factor from 2^74 to 2^75
2020-02-14-Anonymous-NF
no factor from 2^73 to 2^74
2019-11-01-Anonymous-NF
no factor from 2^72 to 2^73
2018-12-01mikrNF-PM1
B1=1600000, B2=51000000, E=12
2018-10-20mikrNF
no factor from 2^71 to 2^72
2015-11-24Alexander DubrovinC-LL
9550CA9A7CBF5C5D
2013-06-06AxelssonNF
no factor from 2^70 to 2^71
2013-06-06AxelssonNF
no factor from 2^69 to 2^70
2013-06-06AxelssonNF
no factor from 2^68 to 2^69
2012-03-30rduerrNF
no factor from 2^67 to 2^68
2009-02-22-Anonymous-NF-PM1
B1=640000