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
6637Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
5203409722.3old
27456279688791341.3old
3878974584292730898792168.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001299 / 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 KruseF51973AB47E225C23013
Verified2017-10-02kkmrkkblmbrbkF51973AB47E225C23013
Verified2017-12-07ATHF51973AB47E225C23502813
Verified2020-04-17Oliver Kruse907C113C6845FB213503953
Verified2024-02-03Wentao Huang907C113C6845FB2139753
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6637/5203409/2745627968879/387897458429273089879 : 907C113C6845FB21
PRP: Verified
PRP without proof (small exponent)
2023-08-10-Anonymous-NF-PM1
B1=37000000000, B2=148599418701633900
2021-12-17Oliver KruseNF-PM1
B1=1000000000, B2=1003954060639530
2020-04-17Oliver KruseC-PRP
M6637/5203409/2745627968879/387897458429273089879 : 907C113C6845FB21
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M6637/5203409/2745627968879/387897458429273089879 : F51973AB47E225C2
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M6637/5203409/2745627968879/387897458429273089879 : F51973AB47E225C2
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6637/known_factors : F51973AB47E225C2
PRP without proof (not generated)