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
175621217Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
15152846439856971018172270.42016-11-01 07:06:52
History
DateUserTypeResult
2016-11-01ConductorF
Factor: 1515284643985697101817 / TF: 70-71
2016-10-26La GüiraNF
no factor from 2^69 to 2^70
2016-10-26La GüiraNF
no factor from 2^68 to 2^69
2016-06-16ANONYMOUSNF
no factor from 2^67 to 2^68
2015-07-03vwflat4NF
no factor from 2^66 to 2^67
2013-04-16sannerud.comNF
no factor from 2^65 to 2^66
2011-03-07Sergej LevinNF
no factor from 2^64 to 2^65
2010-07-16sasaki3NF
no factor from 2^63 to 2^64