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
215134877Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
875063770778374897992066.22015-10-19 18:03:52
History
DateUserTypeResult
2015-10-19ConductorF
Factor: 87506377077837489799 / TF: 66-67
2012-07-08america64NF
no factor from 2^65 to 2^66
2011-05-26clemsonNF
no factor from 2^64 to 2^65