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
251465491Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5482208796999374622412168.92018-06-07 05:52:25
History
DateUserTypeResult
2018-06-07YxinityF
Factor: 548220879699937462241 / TF: 68-69
2014-11-07caddrNF
no factor from 2^67 to 2^68
2014-10-14caddrNF
no factor from 2^66 to 2^67
2013-11-11RichardNF
no factor from 2^65 to 2^66
2011-07-27Lukin DmitryNF
no factor from 2^64 to 2^65
2010-03-03HBendtzNF
no factor from 2^63 to 2^64
2010-03-03HBendtzNF
no factor from 2^62 to 2^63