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
977989777Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
11970594870491340.12008-06-01 01:59:32
40218380980667307611961.82015-12-29 08:59:28
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 4021838098066730761 / TF: 1-62