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
219851Factored
FactorDigitsBitsDate
18946759191030.8old
ECM
DigitsB1Curves
2550000280 / 280
30250000529 / 640
Estimated T-Level: 29.1 ⓘ
TF below 2^92 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-22Oliver KruseD7F9850134E4276C1013
Verified2017-10-12kkmrkkblmbrbkD7F9850134E4276C12168213
Verified2020-01-16_p95holder_AA95CEC93273676616409353
Verified2020-01-19ATHAA95CEC932736766110414453
Verified2023-08-03USAFSSAA95CEC932736766112101053
History
DateUserTypeResult
2023-08-03ANONYMOUSCERT
PRP Certification
Proof certified good
2023-08-03USAFSSC-PRP
M219851/1894675919 : AA95CEC932736766
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-05Oliver KruseNF-PM1
B1=30000000, B2=10070832992220
2021-06-04Oliver KruseNF-PM1
B1=30000000, B2=3000000000
2020-01-19ATHC-PRP
M219851/1894675919 : AA95CEC932736766
PRP: Verified
PRP without proof (small exponent)
2020-01-16_p95holder_C-PRP
M219851/1894675919 : AA95CEC932736766
PRP: Verified
PRP without proof (small exponent)
2020-01-15BommerF-ECM
Factor: 1894675919 / (ECM curve 1, B1=250000, B2=25000000)
2017-10-12kkmrkkblmbrbkC-PRP
M219851/1894675919 : D7F9850134E4276C
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M219851/1894675919 : D7F9850134E4276C
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M219851/1894675919 : D7F9850134E4276C
PRP without proof (not generated)