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
975050059Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
56104380394871342.42008-05-31 23:57:20
1995342440737611547.52014-03-06 11:45:58
254684811857949071932064.52015-12-28 06:41:11
History
DateUserTypeResult
2015-12-28ConductorF
Factor: 25468481185794907193 / TF: 1-65
2014-03-06TJAOIF
Factor: 199534244073761