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
78618707Factored
FactorDigitsBitsDate
188439036452389686146813182312993.92016-08-02 19:14:27
P-1 factors
DateFactorB1B2
2016-08-02188439036452389686146813182316600000
History
DateUserTypeResult
2016-08-02baseyF-PM1
Factor: 18843903645238968614681318231 / (P-1, B1=660000)
2016-07-27monstNF
no factor from 2^74 to 2^75
2016-06-11RichD0NF
no factor from 2^73 to 2^74
2016-06-05Son JohanNF
no factor from 2^72 to 2^73
2015-08-18RichD0NF
no factor from 2^71 to 2^72
2013-01-13Choi4KANGNF
no factor from 2^70 to 2^71
2011-02-07NYC Pet AdoptionNF
no factor from 2^69 to 2^70
2011-02-03NYC Pet AdoptionNF
no factor from 2^68 to 2^69
2011-01-30dslNF
no factor from 2^67 to 2^68
2011-01-28LingUaanNF
no factor from 2^66 to 2^67
2010-11-09ZIM30NF
no factor from 2^65 to 2^66
2010-11-05-Anonymous-NF
no factor from 2^64 to 2^65
2008-07-14-Anonymous-NF
no factor to 2^64