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
2239Factored
FactorDigitsBitsDate
41837190993591341.9old
6565743855299991549.2old
86665467157868091652.9old
5190394246978833808704712478.8old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000063644 / 105362
Estimated T-Level: 58.0 ⓘ
TF below 2^188 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse48041B2F241E81654013
Verified2017-10-02kkmrkkblmbrbk48041B2F241E81654013
Verified2017-12-07ATH48041B2F241E81654100213
Verified2020-04-17Oliver KruseC727712E8794A8E84155053
Verified2024-02-03Wentao HuangC727712E8794A8E84111453
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M2239/4183719099359/656574385529999/8666546715786809/519039424697883380870471 : C727712E8794A8E8
PRP: Verified
PRP without proof (small exponent)
2022-10-03BloodIceNF-PM1
B1=1000000000000, B2=1310738763832658160
2022-09-04BloodIceNF-PM1
B1=100000000000, B2=131076241386900810
2022-08-30BloodIceNF-PM1
B1=10000000000, B2=8197466515738500
2020-04-17Oliver KruseC-PRP
M2239/4183719099359/656574385529999/8666546715786809/519039424697883380870471 : C727712E8794A8E8
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M2239/4183719099359/656574385529999/8666546715786809/519039424697883380870471 : 48041B2F241E8165
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M2239/4183719099359/656574385529999/8666546715786809/519039424697883380870471 : 48041B2F241E8165
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2239/known_factors : 48041B2F241E8165
PRP without proof (not generated)
2016-09-08kkmrkkblmbrbkNF-PM1
B1=500000000, B2=50000000000, E=12