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

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MnStatusDetails
24611Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
49223515.6old
1378217720.42008-08-26 19:59:09
47696119825.52008-08-26 19:59:09
500028840120665015792400990145916351724973637957904152171.72024-02-25 13:36:27
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000005012 / 9201
Estimated T-Level: 42.7
TF below 2^137 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver KruseC87F7FEC10E65B013013
Verified (Factored)2017-10-12kkmrkkblmbrbkC87F7FEC10E65B013691313
Verified (Factored)2020-04-17Oliver Kruse4F4B4FC37B80BFFE337953
Verified (Factored)2022-05-12Jorge Coveiro4F4B4FC37B80BFFE1781053
Verified2024-02-25nordi4F4B4FC37B80BFFE41193653
P-1 factors
DateFactorB1B2
2024-02-25500028840120665015792400990145916351724973637957904180000000002427250412837250
History
DateUserTypeResult
2024-11-23masserNF-PP1
Start=2/7, B1=100000000, B2=99900000000
2024-11-22masserNF-PP1
Start=6/5, B1=100000000, B2=99900000000
2024-11-21masserNF-PP1
Start=98/71, B1=100000000, B2=99900000000
2024-02-25nordiC-PRP
M24611/49223/1378217/47696119/5000288401206650157924009901459163517249736379579041 : 4F4B4FC37B80BFFE
PRP: Verified
PRP without proof (small exponent)
2024-02-25nordiF-PM1
Factor: 5000288401206650157924009901459163517249736379579041 / (P-1, B1=8000000000, B2=2427250412837250)
2023-04-21nordiNF-PM1
B1=8000000000
2022-05-12Jorge CoveiroC-PRP
M24611/49223 : 4F4B4FC37B80BFFE
PRP: Verified
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M24611/49223/1378217/47696119 : 4F4B4FC37B80BFFE
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M24611/49223/1378217/47696119 : C87F7FEC10E65B01
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M24611/49223/1378217/47696119 : C87F7FEC10E65B01
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M24611/49223/1378217/47696119 : C87F7FEC10E65B01
PRP without proof (not generated)
2016-12-04kkmrkkblmbrbkNF-PM1
B1=500000000, B2=10000000000, E=12
2008-08-26-Anonymous-F
Factor: 47696119
2008-08-26-Anonymous-F
Factor: 1378217