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
253639Factored
FactorDigitsBitsDate
56102836523531342.4old
3562263099153037414751077705673177548430320744144.72022-04-23 17:04:19
ECM
DigitsB1Curves
2550000280 / 280
30250000431 / 640
Estimated T-Level: 28.4 ⓘ
TF below 2^89 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-22Oliver KruseFCDBA92F58A728BE1013
Verified (Factored)2017-10-12kkmrkkblmbrbkFCDBA92F58A728BE12385113
Verified (Factored)2020-04-17Oliver Kruse7CB2DE0970A9A26E123878853
Verified2022-04-23aperson17CB2DE0970A9A26E26464653
P-1 factors
DateFactorB1B2
2022-04-23356226309915303741475107770567317754843032073000000010120247026890
History
DateUserTypeResult
2022-04-23Ben DeloCERT
PRP Certification
Proof certified good
2022-04-23aperson1C-PRP
M253639/5610283652353/35622630991530374147510777056731775484303207 : 7CB2DE0970A9A26E
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-23Oliver KruseF-PM1
Factor: 35622630991530374147510777056731775484303207 / (P-1, B1=30000000, B2=10120247026890)
2021-08-28Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M253639/5610283652353 : 7CB2DE0970A9A26E
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M253639/5610283652353 : FCDBA92F58A728BE
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M253639/5610283652353 : FCDBA92F58A728BE
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M253639/5610283652353 : FCDBA92F58A728BE
PRP without proof (not generated)