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
251563633Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5491760775267736165932168.92018-06-07 05:52:31
History
DateUserTypeResult
2018-07-25karjalanpiirakkaF
Factor: 549176077526773616593 / TF: 68-69
2018-06-07YxinityF
Factor: 549176077526773616593 / TF: 68-69
2014-11-09caddrNF
no factor from 2^67 to 2^68
2014-10-19caddrNF
no factor from 2^66 to 2^67
2013-11-05AJNF
no factor from 2^65 to 2^66
2011-07-27sasaki3NF
no factor from 2^64 to 2^65
2010-03-02lindedNF
no factor from 2^63 to 2^64
2010-03-02lindedNF
no factor from 2^62 to 2^63