Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
6673Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
6766423722.7old
195515029671134.2old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001562 / 9201
Estimated T-Level: 40.8
TF below 2^131 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseF833A528FBA3E4A82013
Verified2017-10-12kkmrkkblmbrbkF833A528FBA3E4A82211313
Verified2020-04-17Oliver Kruse29C25776575845E22613753
Verified2024-02-03Wentao Huang29C25776575845E22101253
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6673/6766423/19551502967 : 29C25776575845E2
PRP: Verified
PRP without proof (small exponent)
2023-08-11-Anonymous-NF-PM1
B1=37000000000, B2=148599418701633900
2021-12-18Oliver KruseNF-PM1
B1=1000000000, B2=1014019569853290
2020-04-17Oliver KruseC-PRP
M6673/6766423/19551502967 : 29C25776575845E2
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M6673/6766423/19551502967 : F833A528FBA3E4A8
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6673/6766423/19551502967 : F833A528FBA3E4A8
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6673/6766423/19551502967 : F833A528FBA3E4A8
PRP without proof (not generated)