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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
66529Factored
FactorDigitsBitsDate
17430599824.1old
6681717705160363220468332639273099.12017-01-11 04:17:46
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000533 / 4588
Estimated T-Level: 35.6
TF below 2^113 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse6BF0FB41B216FEC12013
Verified2017-09-21Oliver Kruse6BF0FB41B216FEC12013
Verified2017-11-06kkmrkkblmbrbk6BF0FB41B216FEC121364813
Verified2020-04-17Oliver KruseCF146BF3E4C1794924871353
Verified2024-02-03Wentao HuangCF146BF3E4C1794922748653
History
DateUserTypeResult
2024-02-06masserNF-PP1
Start=130/41, B1=25000000, B2=1775000000
2024-02-05masserNF-PP1
Start=6/5, B1=25000000, B2=1775000000
2024-02-03masserNF-PP1
Start=2/7, B1=25000000, B2=1775000000
2024-02-03Wentao HuangC-PRP
M66529/17430599/668171770516036322046833263927 : CF146BF3E4C17949
PRP: Verified
PRP without proof (small exponent)
2022-10-13George WoltmanNF-PM1
B1=1000000000, B2=92389706529120
2022-10-05George WoltmanNF-PM1
B1=1000000000
2020-04-17Oliver KruseC-PRP
M66529/17430599/668171770516036322046833263927 : CF146BF3E4C17949
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M66529/17430599/668171770516036322046833263927 : 6BF0FB41B216FEC1
PRP: Verified
PRP without proof (small exponent)
2017-09-21Oliver KruseC-PRP
M66529/17430599/668171770516036322046833263927 : 6BF0FB41B216FEC1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M66529/17430599/668171770516036322046833263927 : 6BF0FB41B216FEC1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M66529/17430599/668171770516036322046833263927 : 6BF0FB41B216FEC1
PRP without proof (not generated)
2017-01-11kkmrkkblmbrbkF-ECM
Factor: 668171770516036322046833263927 / (ECM curve 28, B1=250000, B2=25000000)
2016-11-02kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12