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
740266883Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
39288657711919017871932271.72019-08-28 04:18:05
History
DateUserTypeResult
2025-04-08James HeinrichF
Factor: 3928865771191901787193 / TF: 71-72
2019-08-28Smok_bmv F
Factor: 3928865771191901787193 / TF: 71-72*
2019-08-28Smok_bmv NF
no factor from 2^70 to 2^71
2014-02-20monstNF
no factor from 2^66 to 2^70
2014-02-10monstNF
no factor from 2^65 to 2^66
2011-04-07monstNF
no factor from 2^64 to 2^65
2010-07-23Carsten KossendeyNF
no factor from 2^63 to 2^64