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

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MnDetails
859
Composite, with 3 known prime factors. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
7215601722.8old
1318324210152779962039125138252050731552951062501750163.2old
5860989871273778143402402789911061144634121250258979259909733762205.22009-07-01 23:20:32
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2024-09-06George WoltmanPRP_PRP_PRP_PRP_3013
History
DateUserTypeResult
2024-09-06George WoltmanP-PRPM859/7215601/13183242101527799620391251382520507315529510625017/58609898712737781434024027899110611446341212502589792599097337
PRP Cofactor
2009-07-01-anonymous-F-ECMFactor: 58609898712737781434024027899110611446341212502589792599097337