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
977110517Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
713447015092731446.02008-06-02 06:07:44
42940933916440879911961.92015-12-23 14:40:54
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 4294093391644087991 / TF: 1-62