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
210981247Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3217194246709382933932168.12017-11-21 06:35:20
History
DateUserTypeResult
2025-03-28James HeinrichF
Factor: 321719424670938293393 / TF: 68-70
2017-11-21NickF
Factor: 321719424670938293393 / TF: 68-69
2016-08-14XZTNF
no factor from 2^67 to 2^68
2015-10-07rob147147NF
no factor from 2^66 to 2^67
2013-08-13tscNF
no factor from 2^65 to 2^66
2011-05-19subgeniusNF
no factor from 2^64 to 2^65