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
977867789Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
1395431416199161611857.02008-06-11 02:54:22
15214371830134888091960.42015-12-23 20:59:40
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1521437183013488809 / TF: 1-62