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

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MnStatusDetails
101142647Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3968592272091695847272712478.42020-12-06 00:01:28
P-1 factors
DateFactorB1B2
2020-12-063968592272091695847272718450000
History
DateUserTypeResult
2020-12-06Sergey NosovF-PM1
Factor: 396859227209169584727271 / (P-1, B1=845000)
2020-09-20DRobinsonPENF
no factor from 2^75 to 2^76
2020-09-20DRobinsonPENF
no factor from 2^74 to 2^75
2020-03-24Hans LoeblichNF
no factor from 2^73 to 2^74
2020-03-16el groccoNF
no factor from 2^72 to 2^73
2014-11-30shaugeNF
no factor from 2^71 to 2^72
2013-09-08SMoffatNF
no factor from 2^70 to 2^71
2013-09-06SMoffatNF
no factor from 2^69 to 2^70
2013-09-02SMoffatNF
no factor from 2^68 to 2^69
2013-08-29CSLatDDNF
no factor from 2^67 to 2^68
2013-08-26processinfoNF
no factor from 2^66 to 2^67
2013-08-26-Anonymous-NF
no factor from 2^66 to 2^67
2012-04-20Team_InspectorNF
no factor from 2^65 to 2^66
2010-08-12sasaki3NF
no factor from 2^64 to 2^65
2010-02-221997rj7NF
no factor from 2^63 to 2^64