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
197440163Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
77785542623865091546492272.72019-05-15 04:29:58
History
DateUserTypeResult
2019-05-15Smok_bmv F
Factor: 7778554262386509154649 / TF: 72-73*
2019-04-05lobsterfordinnerNF
no factor from 2^71 to 2^72
2019-02-12Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2018-12-19Chabot PrimeNF
no factor from 2^69 to 2^70
2017-09-03p1erssonNF
no factor from 2^68 to 2^69
2016-08-08XZTNF
no factor from 2^67 to 2^68
2015-09-22RichardNF
no factor from 2^66 to 2^67
2013-07-06RichardNF
no factor from 2^65 to 2^66
2011-04-26RichardNF
no factor from 2^64 to 2^65
2010-08-08lindedNF
no factor from 2^63 to 2^64