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

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MnStatusDetails
142122403Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
642091468787626945067958792685.72024-10-03 07:12:04
P-1 factors
DateFactorB1B2
2024-10-036420914687876269450679587983800084690900
History
DateUserTypeResult
2024-10-03Ryan PropperF-PM1
Factor: 64209146878762694506795879 / (P-1, B1=838000, B2=84690900)
2024-09-12RichardNF
no factor from 2^76 to 2^77
2024-07-17SRBaseNF
no factor from 2^75 to 2^76
2023-01-21SRBaseNF
no factor from 2^74 to 2^75
2021-11-06SRBaseNF
no factor from 2^73 to 2^74
2020-11-16SRBaseNF
no factor from 2^72 to 2^73
2016-05-24Mihai PredaNF
no factor from 2^71 to 2^72
2016-04-23Andreas_TruetschNF
no factor from 2^70 to 2^71
2016-04-15Mihai PredaNF
no factor from 2^69 to 2^70
2016-04-07Mihai PredaNF
no factor from 2^68 to 2^69
2016-03-25dbaughNF
no factor from 2^67 to 2^68
2015-02-23nikoszNF
no factor from 2^66 to 2^67
2012-12-08AKAxAutoNF
no factor from 2^65 to 2^66
2010-12-16oodairaNF
no factor from 2^64 to 2^65
2010-06-16sasaki3NF
no factor from 2^63 to 2^64