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
205786507Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3041922278541871920712168.02017-10-10 00:20:56
History
DateUserTypeResult
2025-03-24James HeinrichF
Factor: 304192227854187192071 / TF: 68-70
2017-10-10NickF
Factor: 304192227854187192071 / TF: 68-69
2016-08-30tscNF
no factor from 2^67 to 2^68
2015-09-23rob147147NF
no factor from 2^66 to 2^67
2013-07-30Mr-PlonkNF
no factor from 2^65 to 2^66
2011-05-08dslNF
no factor from 2^64 to 2^65