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
197705821Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
182176067191092695210172373.92019-05-25 15:34:36
History
DateUserTypeResult
2019-05-25manrusF
Factor: 18217606719109269521017 / TF: 73-74
2019-05-16GROBERTSNF
no factor from 2^72 to 2^73
2019-05-08Joe S.NF
no factor from 2^71 to 2^72
2019-02-12Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2017-09-08Andrew BNF
no factor from 2^69 to 2^70
2017-09-04Andrew BNF
no factor from 2^68 to 2^69
2016-08-10XZTNF
no factor from 2^67 to 2^68
2015-09-18Chris SmithNF
no factor from 2^66 to 2^67
2013-07-02Lukin DmitryNF
no factor from 2^65 to 2^66
2011-04-25carlos56NF
no factor from 2^64 to 2^65
2010-08-08sasaki3NF
no factor from 2^63 to 2^64