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
900220921Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
12727947979939263956412270.12016-10-27 15:31:10
History
DateUserTypeResult
2016-10-27ConductorF
Factor: 1272794797993926395641 / TF: 70-71
2011-11-15Thomas NNF
no factor from 2^65 to 2^70
2010-03-10James HintzNF
no factor from 2^63 to 2^65