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
1839737Factored
FactorDigitsBitsDate
38283789030555978891961.72009-07-19 11:26:26
ECM
DigitsB1Curves
2550000280 / 280
30250000106 / 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)Jason Heilman4547A654E66AC5400
Verified (Factored)1998-12-27Lynn Baier4547A654E66AC5401043808
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-04Oliver Kruse9AE88BE02818BAD71013
Verified2017-11-06kkmrkkblmbrbk9AE88BE02818BAD7186657313
History
DateUserTypeResult
2017-11-06kkmrkkblmbrbkC-PRP
M1839737/3828378903055597889 : 9AE88BE02818BAD7
PRP: Verified
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1839737/3828378903055597889 : 9AE88BE02818BAD7
PRP: Verified
PRP without proof (not generated)
2016-03-18alpertronNF-PM1
B1=500000, B2=15000000, E=12
2009-07-19KAMCOBILLF-ECM
Factor: 3828378903055597889