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
205450657Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5541075771228720233692168.92017-10-10 10:04:54
History
DateUserTypeResult
2025-03-24James HeinrichF
Factor: 554107577122872023369 / TF: 68-70
2017-10-10NickF
Factor: 554107577122872023369 / TF: 68-69
2016-08-28sps97003NF
no factor from 2^67 to 2^68
2015-10-04JoJo-SUN24NF
no factor from 2^66 to 2^67
2013-07-29Lukin DmitryNF
no factor from 2^65 to 2^66
2011-05-07sasaki3NF
no factor from 2^64 to 2^65