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
647295437Factored
FactorDigitsBitsDate
4196737077660827375932168.52016-09-16 04:05:18
8338904766990295253832169.52016-09-16 04:05:18
History
DateUserTypeResult
2016-09-16NipalF
Factor: 833890476699029525383 / TF: 67-70
2016-09-16NipalF
Factor: 419673707766082737593 / TF: 67-70
2014-06-15sasakiNF
no factor from 2^66 to 2^67
2014-03-19america64NF
no factor from 2^65 to 2^66