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
161369069Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
63949247130219345349272272.42019-06-20 04:29:00
History
DateUserTypeResult
2019-06-20Smok_bmv F
Factor: 6394924713021934534927 / TF: 72-73*
2018-12-16ZenghuiNF
no factor from 2^71 to 2^72
2018-06-26ZenghuiNF
no factor from 2^70 to 2^71
2018-06-05proxy2222NF
no factor from 2^69 to 2^70
2017-03-30ANONYMOUSNF
no factor from 2^68 to 2^69
2016-03-20XZTNF
no factor from 2^67 to 2^68
2015-05-07vwflat4NF
no factor from 2^66 to 2^67
2013-02-26MucolNF
no factor from 2^65 to 2^66
2011-02-06RichardNF
no factor from 2^64 to 2^65
2010-06-30Torchwood InstituteNF
no factor from 2^63 to 2^64