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
228138629Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
848875224595605026572066.22015-11-11 14:25:45
History
DateUserTypeResult
2015-11-11ConductorF
Factor: 84887522459560502657 / TF: 66-67
2013-09-18RichardNF
no factor from 2^65 to 2^66
2011-06-18tscNF
no factor from 2^64 to 2^65