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
231515357Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1782266058509502751192167.32016-09-29 09:43:17
History
DateUserTypeResult
2016-09-29NickF
Factor: 178226605850950275119 / TF: 67-68
2015-11-14NumberwangNF
no factor from 2^66 to 2^67
2013-09-26Grant McCrackenNF
no factor from 2^65 to 2^66
2011-06-24sasaki3NF
no factor from 2^64 to 2^65