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
153462391Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
12319438534608532717192270.12017-06-11 22:00:27
History
DateUserTypeResult
2017-06-11Sergey NosovF
Factor: 1231943853460853271719 / TF: 70-72*
2017-05-30La GüiraNF
no factor from 2^69 to 2^70
2017-02-27johnsilverNF
no factor from 2^68 to 2^69
2016-04-26beyondNF
no factor from 2^67 to 2^68
2015-04-03vwflat4NF
no factor from 2^66 to 2^67
2013-01-27sasaki3NF
no factor from 2^65 to 2^66
2011-01-19OS1NF
no factor from 2^64 to 2^65
2010-06-24zygNF
no factor from 2^63 to 2^64