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
220581967Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1306703223774919753992166.82015-11-02 13:09:37
History
DateUserTypeResult
2015-11-02Alex_soldierF
Factor: 130670322377491975399 / TF: 66-67
2013-08-21MucolNF
no factor from 2^65 to 2^66
2011-06-04vapaddyNF
no factor from 2^64 to 2^65