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
977223047Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
3361647281691238.32008-06-01 01:29:31
44777146267659155271962.02015-12-23 16:13:40
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 4477714626765915527 / TF: 1-62