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
977116801Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
91105901509175531653.02008-06-11 00:28:23
20210074112830831931960.82015-12-23 14:42:10
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2021007411283083193 / TF: 1-62