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
195015683Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
38068790161391366724312271.72019-08-31 02:48:34
History
DateUserTypeResult
2019-08-31Smok_bmv F
Factor: 3806879016139136672431 / TF: 71-72*
2019-02-02Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2018-12-12Chabot PrimeNF
no factor from 2^69 to 2^70
2017-08-27rmaximusNF
no factor from 2^68 to 2^69
2016-08-11rubikvn2100NF
no factor from 2^67 to 2^68
2015-09-10Michael.ReillyNF
no factor from 2^66 to 2^67
2013-06-22sasaki3NF
no factor from 2^65 to 2^66
2011-04-20dslNF
no factor from 2^64 to 2^65
2010-08-06Torchwood InstituteNF
no factor from 2^63 to 2^64