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
151598927Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
77586131876119454872072272.72017-09-28 00:29:08
History
DateUserTypeResult
2017-10-28Choi4KANGNF
no factor from 2^71 to 2^72
2017-09-28Sergey NosovF
Factor: 7758613187611945487207 / TF: 72-73*
2017-09-21arnaudNF
no factor from 2^71 to 2^72
2016-12-29guruNF
no factor from 2^70 to 2^71
2016-12-29guruNF
no factor from 2^69 to 2^70
2016-12-28caddrNF
no factor from 2^68 to 2^69
2016-04-20nikoszNF
no factor from 2^67 to 2^68
2015-03-253astNF
no factor from 2^66 to 2^67
2013-01-23RichardNF
no factor from 2^65 to 2^66
2011-01-14sannerud.comNF
no factor from 2^64 to 2^65
2010-06-23carlos56NF
no factor from 2^63 to 2^64