Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
230767Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
454312894420091445.4old
276876551209610257233498747132994.52017-05-26 07:21:36
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000160 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse3A12651E2999A1912013
Verified2017-09-22Oliver Kruse3A12651E2999A1912013
Verified2017-11-06kkmrkkblmbrbk3A12651E2999A191222747013
Verified2020-04-17Oliver KruseDB67C928A39C32632945853
Verified2024-02-03Wentao HuangDB67C928A39C3263212101353
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M230767/45431289442009/27687655120961025723349874713 : DB67C928A39C3263
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-24Oliver KruseNF-PM1
B1=30000000, B2=10070832992220
2021-07-06Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M230767/45431289442009/27687655120961025723349874713 : DB67C928A39C3263
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M230767/45431289442009/27687655120961025723349874713 : 3A12651E2999A191
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M230767/45431289442009/27687655120961025723349874713 : 3A12651E2999A191
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M230767/45431289442009/27687655120961025723349874713 : 3A12651E2999A191
PRP without proof (not generated)
2017-05-26TJAOIF-ECM
Factor: 27687655120961025723349874713 / (ECM curve 19, B1=250000, B2=25000000)