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
975083423Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
19501668471030.92008-05-31 23:58:42
47227077419406600471962.02015-12-28 18:38:34
History
DateUserTypeResult
2015-12-28ConductorF
Factor: 4722707741940660047 / TF: 1-65