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
203906363Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1027317953636218807912166.52015-10-01 09:14:34
History
DateUserTypeResult
2015-10-01ConductorF
Factor: 102731795363621880791 / TF: 66-67
2013-07-27RichardNF
no factor from 2^65 to 2^66
2011-05-05Charles A. MorrisNF
no factor from 2^64 to 2^65