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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
14591Factored
FactorDigitsBitsDate
729551619.5old
12956809823.62008-08-26 19:58:43
13769526711030.42008-08-26 19:58:43
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001268 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseBFBCF40F9922EA423013
Verified2017-10-12kkmrkkblmbrbkBFBCF40F9922EA423929213
Unverified2020-04-17Oliver KruseE9782C00188F97__3239353
History
DateUserTypeResult
2024-02-09-Anonymous-NF-PM1
B1=100000000000, B2=122154521813133810
2023-05-25JacobZNF-PM1
B1=7500000000, B2=29520458628010350
2020-04-17Oliver KruseC-PRP
M14591/729551/12956809/1376952671 : E9782C00188F97__
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14591/729551/12956809/1376952671 : BFBCF40F9922EA42
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14591/729551/12956809/1376952671 : BFBCF40F9922EA42
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14591/729551/12956809/1376952671 : BFBCF40F9922EA42
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 1376952671
2008-08-26-Anonymous-F
Factor: 12956809
2007-08-20George WoltmanF-ECM
Factor: 17840912760186839