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
861005983Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
29381183217304713551032271.32019-02-05 12:28:16
History
DateUserTypeResult
2025-03-28James HeinrichF
Factor: 2938118321730471355103 / TF: 71-72
2019-02-05Smok_bmv F
Factor: 2938118321730471355103 / TF: 71-72*
2019-02-05Smok_bmv NF
no factor from 2^70 to 2^71
2017-01-09ramgeisNF
no factor from 2^68 to 2^70
2017-01-08Smok_bmv NF
no factor from 2^68 to 2^70
2015-09-11sasakiNF
no factor from 2^67 to 2^68
2015-03-06sasakiNF
no factor from 2^66 to 2^67
2013-05-01america64NF
no factor from 2^65 to 2^66
2010-10-14Architects CubedNF
no factor from 2^64 to 2^65
2010-04-15Architects CubedNF
no factor from 2^63 to 2^64