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
977483209Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
1540357140070571547.12008-05-30 06:37:53
47248354757996607911962.02015-12-23 17:02:26
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 4724835475799660791 / TF: 1-62