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
977825843Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
201666801860331444.22008-06-02 05:25:24
21967141621402391511960.92015-12-23 19:58:19
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2196714162140239151 / TF: 1-62