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
563039Factored
FactorDigitsBitsDate
1897889374475210725970892477.32007-08-20 04:25:51
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver Kruse58770168601CEDE41013
Verified2017-09-28Oliver Kruse58770168601CEDE41013
Verified2017-11-07kkmrkkblmbrbk58770168601CEDE4131594513
Unverified (Reliable)2020-04-19Oliver KruseC36EBEFE5110C9__137639053
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2021-08-28ViliamFNF-PM1
B1=15000000, B2=1815000000
2020-04-19Oliver KruseC-PRP
M563039/189788937447521072597089 : C36EBEFE5110C9__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M563039/189788937447521072597089 : 58770168601CEDE4
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M563039/189788937447521072597089 : 58770168601CEDE4
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M563039/189788937447521072597089 : 58770168601CEDE4
PRP: Unverified (Reliable)
PRP without proof (not generated)
2007-08-20Chad DavisF-ECM
Factor: 189788937447521072597089