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
977303351Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
4255772306579062311858.62008-06-11 00:34:48
26550797234514578331961.22015-12-23 16:26:13
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2655079723451457833 / TF: 1-62