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
243170947Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2051773875176964630312167.52016-10-09 23:50:29
History
DateUserTypeResult
2016-10-09Mikhail E. GolosovF
Factor: 205177387517696463031 / TF: 67-68
2015-12-07rubikvn2100NF
no factor from 2^66 to 2^67
2013-11-01Yan Ruimin ChinaNF
no factor from 2^65 to 2^66
2011-07-13Jonathan A ZylstraNF
no factor from 2^64 to 2^65