Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
1736927Factored
FactorDigitsBitsDate
26178381580018552631961.22008-07-15 08:51:36
ECM
DigitsB1Curves
2550000280 / 280
30250000108 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Andrew ChurchillE3A01EF44DD8B9C50
Verified (Factored)Jean-Yves CanartE3A01EF44DD8B9C50
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30alpertron90D221098782F9221013
Verified2017-10-19Oliver Kruse90D221098782F922135028713
History
DateUserTypeResult
2017-10-19Oliver KruseC-PRP
M1736927/2617838158001855263 : 90D221098782F922
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1736927/2617838158001855263 : 90D221098782F922
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-15James HeinrichF-ECM
Factor: 2617838158001855263