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
977591177Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
255581437314891444.52008-06-02 06:11:14
12031357891101901131960.12015-12-23 17:45:53
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1203135789110190113 / TF: 1-62