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
207000793Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5215697489593315398892168.82016-11-19 15:50:06
History
DateUserTypeResult
2025-03-28James HeinrichF
Factor: 521569748959331539889 / TF: 68-70
2016-11-19Alex_soldierF
Factor: 521569748959331539889 / TF: 68-69*
2015-10-01ConductorNF
no factor from 2^67 to 2^68
2015-09-26rob147147NF
no factor from 2^66 to 2^67
2013-08-03David CampeauNF
no factor from 2^65 to 2^66
2011-05-10impsNF
no factor from 2^64 to 2^65
2010-05-17Architects CubedNF
no factor from 2^63 to 2^64