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
154897777Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
21762795968353467578172270.92017-05-26 21:48:05
History
DateUserTypeResult
2025-04-24James HeinrichF
Factor: 2176279596835346757817 / TF: 70-71
2017-05-26NickF
Factor: 2176279596835346757817 / TF: 70-71
2017-03-13La GüiraNF
no factor from 2^69 to 2^70
2017-03-13La GüiraNF
no factor from 2^68 to 2^69
2016-05-01mikeblasNF
no factor from 2^67 to 2^68
2015-04-09guruNF
no factor from 2^66 to 2^67
2013-02-05RichardNF
no factor from 2^65 to 2^66
2011-01-22-Anonymous-NF
no factor from 2^64 to 2^65
2010-06-26sasaki3NF
no factor from 2^63 to 2^64