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
207372769Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
808723557792230702472066.12015-10-23 19:22:54
History
DateUserTypeResult
2015-10-23ConductorF
Factor: 80872355779223070247 / TF: 66-67
2013-08-03Grant McCrackenNF
no factor from 2^65 to 2^66
2011-05-11dslNF
no factor from 2^64 to 2^65