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
977882999Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
14628347358640811650.42008-06-11 01:13:06
15227968491828317111960.42015-12-23 21:02:49
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1522796849182831711 / TF: 1-62