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
1838957Factored
FactorDigitsBitsDate
14711657823.8old
49422982419632171652.12014-07-30 11:26:52
ECM
DigitsB1Curves
2550000280 / 280
30250000110 / 640
Estimated T-Level: 25.9 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-04Oliver Kruse4396784936AD67572013
Verified2017-11-06kkmrkkblmbrbk4396784936AD6757258019813
History
DateUserTypeResult
2017-11-06kkmrkkblmbrbkC-PRP
M1838957/14711657/4942298241963217 : 4396784936AD6757
PRP: Verified
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1838957/14711657/4942298241963217 : 4396784936AD6757
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-07-30TJAOIF
Factor: 4942298241963217