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
246420817Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1688617238020591760392167.22016-10-15 18:44:48
History
DateUserTypeResult
2016-10-15Mikhail E. GolosovF
Factor: 168861723802059176039 / TF: 67-68
2015-12-14NickNF
no factor from 2^66 to 2^67
2014-01-04sasakiNF
no factor from 2^65 to 2^66
2011-07-19Andrew BNF
no factor from 2^64 to 2^65