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
186608449Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
43881579707780870157672271.92019-06-11 17:30:52
History
DateUserTypeResult
2019-06-11Samuel SchmidtF
Factor: 4388157970778087015767 / TF: 71-72
2018-12-06ZenghuiNF
no factor from 2^70 to 2^71
2018-11-02OS1NF
no factor from 2^69 to 2^70
2017-07-04-Anonymous-NF
no factor from 2^68 to 2^69
2016-07-22tmorrowNF
no factor from 2^67 to 2^68
2015-08-17Mr-PlonkNF
no factor from 2^66 to 2^67
2013-05-25RichardNF
no factor from 2^65 to 2^66
2011-04-02sasaki3NF
no factor from 2^64 to 2^65
2010-07-29zygNF
no factor from 2^63 to 2^64