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
198695363Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6557950718748411530812169.22015-09-24 04:55:12
History
DateUserTypeResult
2015-09-24demfloroF
Factor: 655795071874841153081 / TF: 69-70
2015-09-24demfloroNF
no factor from 2^68 to 2^69
2015-09-24demfloroNF
no factor from 2^66 to 2^68
2013-07-06sasaki3NF
no factor from 2^65 to 2^66
2011-04-27carlos56NF
no factor from 2^64 to 2^65
2010-09-031997rj7NF
no factor from 2^63 to 2^64