Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
197503403Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
31889846174179763981292271.42019-05-07 21:17:39
History
DateUserTypeResult
2019-05-07manrusF
Factor: 3188984617417976398129 / TF: 71-72
2019-02-11Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2018-12-20Chabot PrimeNF
no factor from 2^69 to 2^70
2017-09-01SummyNF
no factor from 2^68 to 2^69
2016-08-09XZTNF
no factor from 2^67 to 2^68
2015-10-25SummyNF
no factor from 2^66 to 2^67
2013-07-02tscNF
no factor from 2^65 to 2^66
2011-04-25impsNF
no factor from 2^64 to 2^65
2010-08-08Torchwood InstituteNF
no factor from 2^63 to 2^64