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
222563149Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1316912449122535729212166.82015-11-02 08:26:16
History
DateUserTypeResult
2015-11-02NickF
Factor: 131691244912253572921 / TF: 66-67
2013-08-28sasaki3NF
no factor from 2^65 to 2^66
2011-06-08sasaki3NF
no factor from 2^64 to 2^65
2010-05-20Architects CubedNF
no factor from 2^63 to 2^64