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

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MnStatusDetails
151409197Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
391506176989473277250812375.12024-08-07 07:41:13
History
DateUserTypeResult
2025-06-15GregF
Factor: 39150617698947327725081 / TF: 75-76
2024-08-07SRBaseF
Factor: 39150617698947327725081 / TF: 75-76*
2023-02-06SRBaseNF
no factor from 2^74 to 2^75
2021-11-13SRBaseNF
no factor from 2^73 to 2^74
2017-01-31La GüiraNF
no factor from 2^72 to 2^73
2017-01-31La GüiraNF
no factor from 2^71 to 2^72
2016-11-16Adam BuranNF
no factor from 2^70 to 2^71
2016-06-21Adam BuranNF
no factor from 2^69 to 2^70
2016-06-19Adam BuranNF
no factor from 2^68 to 2^69
2016-04-19mikeblasNF
no factor from 2^67 to 2^68
2015-03-23Jason UNF
no factor from 2^66 to 2^67
2013-01-18Charles A. MorrisNF
no factor from 2^65 to 2^66
2011-01-17RichardNF
no factor from 2^64 to 2^65
2010-06-23sasaki3NF
no factor from 2^63 to 2^64