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
610216991Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4482818583121725962232168.62016-11-12 09:39:07
History
DateUserTypeResult
2016-11-12NipalF
Factor: 448281858312172596223 / TF: 67-70
2014-01-20sasakiNF
no factor from 2^65 to 2^67