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
977929123Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
8607636010213209111859.62009-11-27 00:29:28
25574887641439778231961.12015-12-29 08:43:31
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 2557488764143977823 / TF: 1-62