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
6803Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
217697617.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001300 / 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 Kruse1567D0178C7895131013
Verified2017-10-12kkmrkkblmbrbk1567D0178C7895131245613
Verified2020-04-17Oliver Kruse4CB5FEC47C1AFF4C1377253
Verified2024-02-03Wentao Huang4CB5FEC47C1AFF4C1404553
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6803/217697 : 4CB5FEC47C1AFF4C
PRP: Verified
PRP without proof (small exponent)
2023-08-14-Anonymous-NF-PM1
B1=36000000000, B2=144600212653396500
2021-12-16Lisander ViaeneNF-PM1
B1=100000000
2020-04-17Oliver KruseC-PRP
M6803/217697 : 4CB5FEC47C1AFF4C
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M6803/217697 : 1567D0178C789513
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6803/217697 : 1567D0178C789513
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6803/217697 : 1567D0178C789513
PRP without proof (not generated)