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

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Exponent Range:










MnStatusDetails
178469Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1427753720.4old
35833005831031.72008-07-27 10:49:41
3041675576909009211858.12009-03-05 15:10:34
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000183 / 1566
Estimated T-Level: 30.6
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse0F758CB244BE55823013
Verified2017-10-12kkmrkkblmbrbk0F758CB244BE558236697013
Verified2020-04-17Oliver Kruse05CCF17DD54E27A0311646853
Verified2024-02-03Wentao Huang05CCF17DD54E27A0314185753
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M178469/1427753/3583300583/304167557690900921 : 05CCF17DD54E27A0
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-17Oliver KruseC-PRP
M178469/1427753/3583300583/304167557690900921 : 05CCF17DD54E27A0
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M178469/1427753/3583300583/304167557690900921 : 0F758CB244BE5582
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M178469/1427753/3583300583/304167557690900921 : 0F758CB244BE5582
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M178469/1427753/3583300583/304167557690900921 : 0F758CB244BE5582
PRP without proof (not generated)
2017-06-01kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2009-03-05-Anonymous-F-ECM
Factor: 304167557690900921
2008-07-27J FeitsmaF
Factor: 3583300583