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
2003Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
4007412.0old
65886227149466091652.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000063926 / 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 Kruse9D377B7849B8A93E2013
Verified2017-10-12kkmrkkblmbrbk9D377B7849B8A93E2191413
Verified2020-04-17Oliver KruseF7CBB1C0E89004A12153053
Verified2020-08-12_p95holder_F7CBB1C0E89004A1292053
Verified (Factored)2022-05-12Jorge CoveiroF7CBB1C0E89004A1165253
History
DateUserTypeResult
2022-05-12Jorge CoveiroC-PRP
M2003/4007 : F7CBB1C0E89004A1
PRP: Verified (Factored)
PRP without proof (small exponent)
2022-02-09mikrNF-PM1
B1=70000000000, B2=350021794428456150
2022-02-09mikrNF-PM1
B1=70000000000
2021-08-27H MichaelsonNF-PP1
Start=2/7, B1=25000000, B2=2500000000
2021-03-28ViliamFNF-PM1
B1=1000000000, B2=191000000000
2020-08-12_p95holder_C-PRP
M2003/4007/6588622714946609 : F7CBB1C0E89004A1
PRP: Verified (Factored)
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M2003/4007/6588622714946609 : F7CBB1C0E89004A1
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M2003/4007/6588622714946609 : 9D377B7849B8A93E
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2003/4007/6588622714946609 : 9D377B7849B8A93E
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2003/4007/6588622714946609 : 9D377B7849B8A93E
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=500000000, B2=50000000000, E=12