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
152495951Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19759431655641984597772270.72017-05-17 00:36:38
History
DateUserTypeResult
2017-05-17Sergey NosovF
Factor: 1975943165564198459777 / TF: 70-72*
2017-04-21YxinityNF
no factor from 2^69 to 2^70
2017-04-21YxinityNF
no factor from 2^68 to 2^69
2016-04-26rubikvn2100NF
no factor from 2^67 to 2^68
2015-03-31vwflat4NF
no factor from 2^66 to 2^67
2013-01-22Chih-Wei HuangNF
no factor from 2^65 to 2^66
2011-01-17Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-07-191997rj7NF
no factor from 2^63 to 2^64