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
216202669Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1719600451738967595192167.22015-10-21 17:55:06
History
DateUserTypeResult
2015-10-21demfloroF
Factor: 171960045173896759519 / TF: 66-68
2012-07-02laleraNF
no factor from 2^65 to 2^66
2011-05-28sasaki3NF
no factor from 2^64 to 2^65