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
217008461Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3172874895244974008472168.12016-12-11 10:16:37
History
DateUserTypeResult
2016-12-11ConductorF
Factor: 317287489524497400847 / TF: 68-69
2016-09-08XolotlNF
no factor from 2^67 to 2^68
2015-10-27NoPolarBearsHereNF
no factor from 2^66 to 2^67
2012-12-27america64NF
no factor from 2^65 to 2^66
2011-05-29sannerud.comNF
no factor from 2^64 to 2^65