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

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MnStatusDetails
133194421Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3918648294567121218940492478.42024-08-27 14:06:57
P-1 factors
DateFactorB1B2
2024-08-273918648294567121218940491066000773899500
History
DateUserTypeResult
2024-08-27Luke DurantF-PM1
Factor: 391864829456712121894049 / (P-1, B1=1066000, B2=773899500)
2023-09-10duNF
no factor from 2^76 to 2^77
2023-08-311997rj7NF
no factor from 2^75 to 2^76
2023-01-01SRBaseNF
no factor from 2^74 to 2^75
2021-07-23SRBaseNF
no factor from 2^73 to 2^74
2020-10-22SRBaseNF
no factor from 2^72 to 2^73
2016-02-03Choi4KANGNF
no factor from 2^71 to 2^72
2016-01-28SourceBinary.comNF
no factor from 2^70 to 2^71
2016-01-26La GüiraNF
no factor from 2^69 to 2^70
2016-01-26La GüiraNF
no factor from 2^68 to 2^69
2016-01-26La GüiraNF
no factor from 2^67 to 2^68
2015-01-21Robert FolzNF
no factor from 2^66 to 2^67
2012-10-20sasaki3NF
no factor from 2^65 to 2^66
2010-11-21Nathan EdingtonNF
no factor from 2^64 to 2^65
2010-06-05oodairaNF
no factor from 2^63 to 2^64