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
216201289Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2480751845384404817992167.72015-10-21 06:55:18
History
DateUserTypeResult
2015-10-21demfloroF
Factor: 248075184538440481799 / 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