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
178915783Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4252000440005044290792168.52017-05-23 19:53:44
History
DateUserTypeResult
2025-03-26James HeinrichF
Factor: 425200044000504429079 / TF: 68-70
2017-05-23NickF
Factor: 425200044000504429079 / TF: 68-69
2016-06-27rubikvn2100NF
no factor from 2^67 to 2^68
2015-07-17subgeniusNF
no factor from 2^66 to 2^67
2013-04-28RichardNF
no factor from 2^65 to 2^66
2011-03-16Mr-PlonkNF
no factor from 2^64 to 2^65
2010-07-20Torchwood InstituteNF
no factor from 2^63 to 2^64