Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
197236183Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
206544218711590593156712374.12019-08-21 11:45:40
History
DateUserTypeResult
2019-08-21Smok_bmv F
Factor: 20654421871159059315671 / TF: 74-75*
2019-03-21hktNF
no factor from 2^73 to 2^74
2019-03-21hktNF
no factor from 2^72 to 2^73
2019-03-21hktNF
no factor from 2^71 to 2^72
2019-02-15Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2018-12-18Chabot PrimeNF
no factor from 2^69 to 2^70
2017-09-05el groccoNF
no factor from 2^68 to 2^69
2016-08-07XZTNF
no factor from 2^67 to 2^68
2015-09-17vwflat4NF
no factor from 2^66 to 2^67
2013-07-07RichardNF
no factor from 2^65 to 2^66
2011-04-25RichardNF
no factor from 2^64 to 2^65
2010-08-08HBendtzNF
no factor from 2^63 to 2^64