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
272903Factored
FactorDigitsBitsDate
730381430138518791756.0old
15490053833669601718812270.42016-05-20 10:51:34
552703215782036482797349672685.52020-07-05 10:46:32
94819743911285840547296603212892.92023-04-14 02:01:17
ECM
DigitsB1Curves
2550000280 / 280
30250000558 / 640
Estimated T-Level: 29.4 ⓘ
TF below 2^93 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse40F5CD8A537250342013
Verified (Factored)2017-10-13Oliver Kruse68F576EB8DF61438212936253
Verified (Factored)2017-10-13Oliver Kruse40F5CD8A5372503423022713
Verified (Factored)2017-11-02kkmrkkblmbrbk68F576EB8DF61438224228453
Verified (Factored)2019-04-09kkmrkkblmbrbk40F5CD8A53725034225877713
Verified (Factored)2020-07-05M Miller68F576EB8DF6143831334253
Verified2023-04-16nordi68F576EB8DF6143849565653
History
DateUserTypeResult
2023-04-16Simon JosefssonCERT
PRP Certification
Proof certified good
2023-04-16nordiC-PRP
M272903/73038143013851879/1549005383366960171881/55270321578203648279734967/9481974391128584054729660321 : 68F576EB8DF61438
PRP proof power = 5
PRP: Verified
Proof certified good
2023-04-14nordiF-ECM
Factor: 9481974391128584054729660321 / (ECM curve 16, B1=250000, B2=551335785, Sigma=5049170345394390)
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-07-05M MillerC-PRP
M272903/73038143013851879/1549005383366960171881/55270321578203648279734967 : 68F576EB8DF61438
PRP: Verified (Factored)
PRP without proof (small exponent)
2020-07-05_p95holder_F-ECM
Factor: 55270321578203648279734967 / (ECM curve 1, B1=250000, B2=25000000)
2019-04-09kkmrkkblmbrbkC-PRP
M272903/1549005383366960171881/73038143013851879 : 40F5CD8A53725034
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-11-02kkmrkkblmbrbkC-PRP
M272903/73038143013851879/1549005383366960171881 : 68F576EB8DF61438
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M272903/73038143013851879/1549005383366960171881 : 40F5CD8A53725034
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M272903/73038143013851879/1549005383366960171881 : 68F576EB8DF61438
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M272903/known_factors : 40F5CD8A53725034
PRP without proof (not generated)
2016-05-20TJAOIF-ECM
Factor: 1549005383366960171881 / (ECM curve 2, B1=50000, B2=5000000)