Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
100523Factored
FactorDigitsBitsDate
12290016367031340.2old
2657228192704631547.92010-01-20 22:02:29
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000274 / 1566
Estimated T-Level: 30.9
TF below 2^98 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse7983BCBDF18A753C2013
Verified2017-10-13kkmrkkblmbrbk7983BCBDF18A753C23283413
Verified2020-04-17Oliver Kruse454F801F08D360B82316853
Verified2022-04-15LordJulius454F801F08D360B822808253
History
DateUserTypeResult
2022-10-23LordJuliusNF
no factor from 2^66 to 2^67
2022-10-23LordJuliusNF
no factor from 2^65 to 2^66
2022-10-22LordJuliusNF
no factor from 2^64 to 2^65
2022-10-22LordJuliusNF
no factor from 2^63 to 2^64
2022-10-22LordJuliusNF
no factor from 2^62 to 2^63
2022-04-15LordJuliusC-PRP
M100523/1229001636703/265722819270463 : 454F801F08D360B8
PRP: Verified
PRP without proof (small exponent)
2022-04-13LordJuliusNF
no factor from 2^61 to 2^62
2022-04-13LordJuliusNF
no factor from 2^60 to 2^61
2022-04-13LordJuliusNF
no factor from 2^59 to 2^60
2022-04-13LordJuliusNF
no factor from 2^58 to 2^59
2022-04-13LordJuliusNF
no factor from 2^57 to 2^58
2021-12-17Seth_TrNF-PM1
B1=1000000000, B2=6552834288000
2020-04-17Oliver KruseC-PRP
M100523/1229001636703/265722819270463 : 454F801F08D360B8
PRP: Verified
PRP without proof (small exponent)
2018-11-01J.R. AllenNF
no factor from 2^59 to 2^60
2018-11-01J.R. AllenNF
no factor from 2^58 to 2^59
2018-11-01J.R. AllenNF
no factor from 2^57 to 2^58
2018-10-25J.R. AllenNF
no factor from 2^52 to 2^57
2017-10-13kkmrkkblmbrbkC-PRP
M100523/1229001636703/265722819270463 : 7983BCBDF18A753C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M100523/1229001636703/265722819270463 : 7983BCBDF18A753C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M100523/1229001636703/265722819270463 : 7983BCBDF18A753C
PRP without proof (not generated)
2016-10-31kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2010-01-20Rob_DeeF-ECM
Factor: 265722819270463