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
7829Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
395559755271135.2old
5091073402695023083817832478.8old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000006609 / 9201
Estimated T-Level: 43.6
TF below 2^140 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse26255EF41134C2922013
Verified2017-10-12kkmrkkblmbrbk26255EF41134C2922113213
Verified2020-04-17Oliver KruseAF06FAA11B544DA82181153
Verified2024-02-03Wentao HuangAF06FAA11B544DA8226753
History
DateUserTypeResult
2024-12-11yuriy5-1NF-PM1
B1=24000000000, B2=93848103835646160
2024-02-03Wentao HuangC-PRP
M7829/39555975527/509107340269502308381783 : AF06FAA11B544DA8
PRP: Verified
PRP without proof (small exponent)
2021-07-10ViliamFNF-PM1
B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M7829/39555975527/509107340269502308381783 : AF06FAA11B544DA8
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M7829/39555975527/509107340269502308381783 : 26255EF41134C292
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M7829/39555975527/509107340269502308381783 : 26255EF41134C292
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M7829/39555975527/509107340269502308381783 : 26255EF41134C292
PRP without proof (not generated)