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
977573621Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
6158713812311239.22008-06-11 00:39:09
18959147952336389111960.72015-12-23 17:41:26
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1895914795233638911 / TF: 1-62