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
228907463Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2143228501353845872572167.52016-09-18 12:43:14
History
DateUserTypeResult
2016-09-18baseyF
Factor: 214322850135384587257 / TF: 67-68
2015-10-10NumberwangNF
no factor from 2^66 to 2^67
2013-09-17HardyP GermanyNF
no factor from 2^65 to 2^66
2011-06-20sasaki3NF
no factor from 2^64 to 2^65