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

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MnStatusDetails
154942009Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
395584032935282739042012375.12024-08-13 06:30:50
History
DateUserTypeResult
2025-06-06GregF
Factor: 39558403293528273904201 / TF: 75-76
2024-08-13SRBaseF
Factor: 39558403293528273904201 / TF: 75-76*
2023-02-16SRBaseNF
no factor from 2^74 to 2^75
2021-11-17SRBaseNF
no factor from 2^73 to 2^74
2018-07-17ANONYMOUSNF
no factor from 2^72 to 2^73
2018-06-30Smok_bmv NF
no factor from 2^71 to 2^72
2017-11-29NaytanNF
no factor from 2^70 to 2^71
2017-07-17La GüiraNF
no factor from 2^69 to 2^70
2017-03-18La GüiraNF
no factor from 2^68 to 2^69
2016-05-18RichardNF
no factor from 2^67 to 2^68
2015-04-09guruNF
no factor from 2^66 to 2^67
2013-02-01Charles A. MorrisNF
no factor from 2^65 to 2^66
2011-01-22Mr-PlonkNF
no factor from 2^64 to 2^65
2010-06-26Charles A. MorrisNF
no factor from 2^63 to 2^64