Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
728189183Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
22551219574647423823692270.92019-07-22 04:29:55
History
DateUserTypeResult
2025-03-26James HeinrichF
Factor: 2255121957464742382369 / TF: 70-71
2019-07-22Smok_bmv F
Factor: 2255121957464742382369 / TF: 70-71*
2015-09-17monstNF
no factor from 2^66 to 2^70
2013-02-12monstNF
no factor from 2^65 to 2^66
2011-03-27monstNF
no factor from 2^64 to 2^65
2010-07-29Architects CubedNF
no factor from 2^63 to 2^64