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
977147749Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
17136748191042491650.62008-06-11 00:20:43
57420445451364625431962.32015-12-23 14:48:02
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 5742044545136462543 / TF: 1-63