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
174481Factored
FactorDigitsBitsDate
242514338223964798777212374.42009-03-17 05:50:39
ECM
DigitsB1Curves
2550000280 / 280
30250000631 / 640
Estimated T-Level: 29.9
TF below 2^94 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Amdahl 6 - 19890C16DE870
Verified (Factored)David Radcliffe3A9810210C16DE870
Verified (Factored)Brian J. Beesley3A9810210C16DE870
Verified (Factored)Eivind Triel3A9810210C16DE8755513
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseE232CC2AB897B0B61013
Verified2017-09-22Oliver KruseE232CC2AB897B0B61013
Verified2017-11-06kkmrkkblmbrbkE232CC2AB897B0B6116015713
Verified2020-04-17Oliver Kruse727040836874310D117064553
Verified2023-05-09retsu727040836874310D1993953
History
DateUserTypeResult
2023-05-09Stefan G HoffmannCERT
PRP Certification
Proof certified good
2023-05-09retsuC-PRP
M174481/24251433822396479877721 : 727040836874310D
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^57 to 2^58
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-17Oliver KruseC-PRP
M174481/24251433822396479877721 : 727040836874310D
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M174481/24251433822396479877721 : E232CC2AB897B0B6
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M174481/24251433822396479877721 : E232CC2AB897B0B6
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M174481/24251433822396479877721 : E232CC2AB897B0B6
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M174481/24251433822396479877721 : E232CC2AB897B0B6
PRP without proof (not generated)
2017-06-02kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2009-03-17James HeinrichF-ECM
Factor: 24251433822396479877721
2009-02-07Sturle SundeNF
no factor from 2^59 to 2^60
2009-01-27axnNF-PM1
B1=5000000, B2=200000000, E=12
2009-01-01Sturle SundeNF
no factor from 2^58 to 2^59