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
169754573Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5561164256438987267272168.92016-10-03 20:00:38
History
DateUserTypeResult
2016-10-03Sergey NosovF
Factor: 556116425643898726727 / TF: 68-72*
2016-03-21XZTNF
no factor from 2^67 to 2^68
2015-06-10nikoszNF
no factor from 2^66 to 2^67
2013-03-29RichardNF
no factor from 2^65 to 2^66
2011-02-20MattNF
no factor from 2^64 to 2^65
2010-07-09OS1NF
no factor from 2^63 to 2^64