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

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MnStatusDetails
138437963Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2052457874219359716890423212787.42024-09-20 20:49:25
P-1 factors
DateFactorB1B2
2024-09-2020524578742193597168904232111530001232629200
History
DateUserTypeResult
2024-09-20Luke DurantF-PM1
Factor: 205245787421935971689042321 / (P-1, B1=1153000, B2=1232629200)
2024-07-05mezonNF
no factor from 2^76 to 2^77
2024-07-05mezonNF
no factor from 2^75 to 2^76
2023-01-13SRBaseNF
no factor from 2^74 to 2^75
2021-08-02SRBaseNF
no factor from 2^73 to 2^74
2020-10-23SRBaseNF
no factor from 2^72 to 2^73
2016-09-22neocppNF
no factor from 2^71 to 2^72
2016-09-13DerekNF
no factor from 2^70 to 2^71
2016-09-11La GüiraNF
no factor from 2^69 to 2^70
2016-09-11La GüiraNF
no factor from 2^68 to 2^69
2016-08-02proxy2222NF
no factor from 2^67 to 2^68
2015-02-07Karol TNF
no factor from 2^66 to 2^67
2012-11-17KoekieNF
no factor from 2^65 to 2^66
2010-12-04RichardNF
no factor from 2^64 to 2^65
2010-06-12Charles A. MorrisNF
no factor from 2^63 to 2^64