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
197579999Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
124813950021255335549112373.42019-05-13 05:11:39
History
DateUserTypeResult
2019-05-13Samuel SchmidtF
Factor: 12481395002125533554911 / TF: 73-74
2019-05-12JMGarciaNF
no factor from 2^72 to 2^73
2019-05-08Joe S.NF
no factor from 2^71 to 2^72
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
2017-09-02Peter PNF
no factor from 2^68 to 2^69
2016-08-09XZTNF
no factor from 2^67 to 2^68
2015-09-18tscNF
no factor from 2^66 to 2^67
2013-07-02MucolNF
no factor from 2^65 to 2^66
2011-04-25Nathan EdingtonNF
no factor from 2^64 to 2^65
2010-08-08lindedNF
no factor from 2^63 to 2^64