Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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Exponent Range:










MnStatusDetails
156383749No known factors, not tested for primality
TF
No factors below 277
TF target 278
P-1
B1 = 1400000
B2 = 1681922550
History
DateUserTypeResult
2025-01-10Jason LynchNF
no factor from 2^76 to 2^77
2024-08-19SRBaseNF
no factor from 2^75 to 2^76
2024-07-27Luke DurantNF-PM1
B1=1400000, B2=1681922550
2024-05-06GregNF
no factor from 2^70 to 2^71
2023-02-18SRBaseNF
no factor from 2^74 to 2^75
2021-11-29SRBaseNF
no factor from 2^73 to 2^74
2017-10-17treborNF
no factor from 2^72 to 2^73
2017-08-08David HruskaNF
no factor from 2^71 to 2^72
2016-10-25Josh FamestadNF
no factor from 2^70 to 2^71
2014-10-18La GüiraNF
no factor from 2^69 to 2^70
2014-10-18La GüiraNF
no factor from 2^68 to 2^69
2014-10-18La GüiraNF
no factor from 2^67 to 2^68
2014-08-01abcNF
no factor from 2^66 to 2^67
2013-02-07subgeniusNF
no factor from 2^65 to 2^66
2011-01-25runeskNF
no factor from 2^64 to 2^65