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
253691003Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5178307172705905456492168.82018-06-09 17:33:17
History
DateUserTypeResult
2018-06-09YxinityF
Factor: 517830717270590545649 / TF: 68-69
2015-06-06caddrNF
no factor from 2^66 to 2^68
2013-11-09tscNF
no factor from 2^65 to 2^66
2011-07-30Andrew BNF
no factor from 2^64 to 2^65
2010-03-05sasaki3NF
no factor from 2^63 to 2^64
2010-03-05sasaki3NF
no factor from 2^62 to 2^63