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
155373847Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
72505466751299433989592272.62017-08-28 22:42:08
History
DateUserTypeResult
2017-08-28Sergey NosovF
Factor: 7250546675129943398959 / TF: 72-73*
2017-08-21Ilya AlexandrovNF
no factor from 2^71 to 2^72
2017-08-08David HruskaNF
no factor from 2^70 to 2^71
2017-02-14La GüiraNF
no factor from 2^69 to 2^70
2016-07-28Mihai PredaNF
no factor from 2^68 to 2^69
2016-05-06DerekNF
no factor from 2^67 to 2^68
2015-04-11tscNF
no factor from 2^66 to 2^67
2013-02-03AKAxAutoNF
no factor from 2^65 to 2^66
2011-01-23-Anonymous-NF
no factor from 2^64 to 2^65