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
977556241Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
3016632123402479931858.12008-06-11 00:37:07
12263396980894924091960.12015-12-23 17:36:07
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1226339698089492409 / TF: 1-62