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
1493Factored
FactorDigitsBitsDate
37885263191031.8old
912808606363882454196483111032976854422340132.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000016928 / 40830
Estimated T-Level: 52.1
TF below 2^168 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseF054E5AE351E51212013
Verified2017-10-02kkmrkkblmbrbkF054E5AE351E51212013
Verified2017-12-07ATHF054E5AE351E5121237213
Verified2020-04-17Oliver KruseA67B69E84E0FF3EE298653
Verified2020-08-12_p95holder_A67B69E84E0FF3EE2108953
History
DateUserTypeResult
2021-07-21ViliamFNF-PP1
Start=2/7, B1=1000000000, B2=221000000000
2021-03-27nordiNF-PM1
B1=1000000000000, B2=2232843418649129478
2020-08-12_p95holder_C-PRP
M1493/3788526319/9128086063638824541964831110329768544223 : A67B69E84E0FF3EE
PRP: Verified
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M1493/3788526319/9128086063638824541964831110329768544223 : A67B69E84E0FF3EE
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M1493/3788526319/9128086063638824541964831110329768544223 : F054E5AE351E5121
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M1493/3788526319/9128086063638824541964831110329768544223 : F054E5AE351E5121
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M1493/known_factors : F054E5AE351E5121
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=1000000000, B2=100000000000, E=12