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
977556091Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
161511817355031443.92008-06-02 06:10:58
16979255892607313291960.62015-12-23 17:36:04
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1697925589260731329 / TF: 1-62