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
202856383Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1393080245097846440572166.92015-09-28 18:49:01
History
DateUserTypeResult
2015-09-28ConductorF
Factor: 139308024509784644057 / TF: 66-67
2013-07-24riccardo ubertiNF
no factor from 2^65 to 2^66
2011-05-03Charles A. MorrisNF
no factor from 2^64 to 2^65