Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
977225141Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
4571083153819240391858.72008-06-11 00:27:19
15795496048559951031960.52015-12-23 16:14:00
560933267742308527512065.62019-02-06 12:21:47
History
DateUserTypeResult
2022-08-14J.R. AllenNF
no factor from 2^62 to 2^65
2019-02-06TJAOIF
Factor: 56093326774230852751 / TF: 65-66
2015-12-23ConductorF
Factor: 1579549604855995103 / TF: 1-62