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
171765749Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3849957685444643694232168.42016-10-01 08:01:30
History
DateUserTypeResult
2025-03-29James HeinrichF
Factor: 384995768544464369423 / TF: 68-70
2016-10-01yponomarevF
Factor: 384995768544464369423 / TF: 68-69
2016-04-24XZTNF
no factor from 2^67 to 2^68
2015-08-19vwflat4NF
no factor from 2^66 to 2^67
2013-04-03CorbyguyNF
no factor from 2^65 to 2^66
2011-02-26sasaki3NF
no factor from 2^64 to 2^65
2010-07-11Charles A. MorrisNF
no factor from 2^63 to 2^64