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
251725181Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4090678330473129095512168.52018-06-07 17:39:15
History
DateUserTypeResult
2018-06-07YxinityF
Factor: 409067833047312909551 / TF: 68-69
2014-11-13caddrNF
no factor from 2^67 to 2^68
2014-10-19caddrNF
no factor from 2^66 to 2^67
2013-11-10GrunwalderGIMPNF
no factor from 2^65 to 2^66
2011-07-27carlos56NF
no factor from 2^64 to 2^65
2010-03-03OS1NF
no factor from 2^63 to 2^64
2010-03-03OS1NF
no factor from 2^62 to 2^63