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
221450189Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1114147335248283153112166.62015-10-28 12:14:30
History
DateUserTypeResult
2015-10-28NickF
Factor: 111414733524828315311 / TF: 66-67
2013-08-24lindeeNF
no factor from 2^65 to 2^66
2011-06-07RichardNF
no factor from 2^64 to 2^65