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
2543Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
5087412.3old
1063297183296605903275711432786.5old
12020276998983042256966618351872613537119142136.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
551100000009744 / 40830
Estimated T-Level: 51.2
TF below 2^165 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse59489616C8D080143013
Verified2017-10-02kkmrkkblmbrbk59489616C8D080143013
Verified2017-12-07ATH59489616C8D080143223613
Verified2020-04-17Oliver Kruse68AB7B77AA6CBBB1332353
Verified (Factored)2022-05-12Jorge Coveiro68AB7B77AA6CBBB11202053
Verified2024-02-03Wentao Huang68AB7B77AA6CBBB1393353
History
DateUserTypeResult
2024-05-23masserNF-PM1
B1=100000000000, B2=47410941879551250
2024-02-03Wentao HuangC-PRP
M2543/5087/106329718329660590327571143/120202769989830422569666183518726135371191 : 68AB7B77AA6CBBB1
PRP: Verified
PRP without proof (small exponent)
2022-05-12Jorge CoveiroC-PRP
M2543/5087 : 68AB7B77AA6CBBB1
PRP: Verified
PRP without proof (small exponent)
2021-07-05ViliamFNF-PM1
B1=1000000000, B2=191000000000
2021-07-04ViliamFNF-PM1
B1=100000000, B2=13100000000
2020-04-17Oliver KruseC-PRP
M2543/5087/106329718329660590327571143/120202769989830422569666183518726135371191 : 68AB7B77AA6CBBB1
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M2543/5087/106329718329660590327571143/120202769989830422569666183518726135371191 : 59489616C8D08014
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M2543/5087/106329718329660590327571143/120202769989830422569666183518726135371191 : 59489616C8D08014
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2543/known_factors : 59489616C8D08014
PRP without proof (not generated)