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
245550313Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4214012972311062197772168.52018-05-28 05:22:39
History
DateUserTypeResult
2018-05-28YxinityF
Factor: 421401297231106219777 / TF: 68-69
2016-10-15tscNF
no factor from 2^67 to 2^68
2015-12-09Grant McCrackenNF
no factor from 2^66 to 2^67
2013-10-26subgeniusNF
no factor from 2^65 to 2^66
2011-07-19RichardNF
no factor from 2^64 to 2^65