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
207179759Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1330772066694417983592166.92015-10-12 19:02:23
History
DateUserTypeResult
2015-10-12ConductorF
Factor: 133077206669441798359 / TF: 66-67
2013-10-05riccardo ubertiNF
no factor from 2^65 to 2^66
2011-05-10Charles A. MorrisNF
no factor from 2^64 to 2^65