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
195173131Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6915937403535377320312169.22016-11-28 18:38:55
History
DateUserTypeResult
2016-11-28Sergey NosovF
Factor: 691593740353537732031 / TF: 68-72*
2016-08-13erdramseNF
no factor from 2^67 to 2^68
2015-09-11MucolNF
no factor from 2^66 to 2^67
2013-06-23OS1NF
no factor from 2^65 to 2^66
2011-04-22RichardNF
no factor from 2^64 to 2^65
2010-08-31monstNF
no factor from 2^63 to 2^64