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
163882967Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1209865220687356025692166.72015-05-18 17:31:51
History
DateUserTypeResult
2015-05-18Alex_soldierF
Factor: 120986522068735602569 / TF: 66-67
2013-03-07MucolNF
no factor from 2^65 to 2^66
2011-02-07marvikNF
no factor from 2^64 to 2^65
2010-07-04RichardNF
no factor from 2^63 to 2^64