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
49264451Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
238999656325599696441292374.32011-03-31 06:10:55
History
DateUserTypeResult
2011-03-31Jack The RipperF-PM1
Factor: 23899965632559969644129
2008-06-03-Anonymous-NF
no factor to 2^64