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

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MnStatusDetails
156417203Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
9411839962864343866385070492789.62025-09-14 01:46:40
P-1 factors
DateFactorB1B2
2025-09-14941183996286434386638507049866000866000
History
DateUserTypeResult
2025-09-14Ryan PropperF-PM1
Factor: 941183996286434386638507049 / (P-1, B1=866000)
2025-05-21RichardNF
no factor from 2^77 to 2^78
2024-12-20ViliNF
no factor from 2^76 to 2^77
2024-08-19SRBaseNF
no factor from 2^75 to 2^76
2023-02-22SRBaseNF
no factor from 2^74 to 2^75
2021-11-15SRBaseNF
no factor from 2^73 to 2^74
2018-08-18David HruskaNF
no factor from 2^72 to 2^73
2018-05-25David HruskaNF
no factor from 2^71 to 2^72
2018-02-22proxy2222NF
no factor from 2^70 to 2^71
2017-11-04La GüiraNF
no factor from 2^69 to 2^70
2017-03-07XolotlNF
no factor from 2^68 to 2^69
2016-05-07DerekNF
no factor from 2^67 to 2^68
2015-04-15sasakiNF
no factor from 2^66 to 2^67
2013-02-07Charles A. MorrisNF
no factor from 2^65 to 2^66
2011-01-25csabaNF
no factor from 2^64 to 2^65