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
274147Factored
FactorDigitsBitsDate
289084194560464543932064.62008-01-11 10:35:20
ECM
DigitsB1Curves
2550000280 / 280
30250000637 / 640
Estimated T-Level: 30.0
TF below 2^95 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2015-08-11MadPooDA66994357D855F543135
Verified (Factored)2015-08-11MadPooDA66994357D855F593766
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseED624E45C27992FD1013
Verified2017-10-13Oliver Kruse0ADDC02C397ED6A2124534153
Verified2017-10-13kkmrkkblmbrbkED624E45C27992FD194713
Verified2017-11-02kkmrkkblmbrbk0ADDC02C397ED6A216241153
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2017-11-02kkmrkkblmbrbkC-PRP
M274147/28908419456046454393 : 0ADDC02C397ED6A2
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M274147/28908419456046454393 : ED624E45C27992FD
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M274147/28908419456046454393 : 0ADDC02C397ED6A2
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M274147/28908419456046454393 : ED624E45C27992FD
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M274147/28908419456046454393 : ED624E45C27992FD
PRP without proof (not generated)
2015-08-11MadPooC-LL
DA66994357D855F5
2015-08-11MadPooC-LL
DA66994357D855F5
2008-01-11Team_BunduF-ECM
Factor: 28908419456046454393