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Old 2020-08-30, 17:15   #1
storm5510
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Default Repeating ECM's with a known factor.

This is something which I do not understand the purpose of doing. There is so much repetition here as it is. My belief would be if a single factor is found, drop the exponent from the list and move on. The current ceiling for ECM's is 40M-1. The bulk of this work is being done below 1-million, according to the "Exponent Status Distribution" page on mersenne.org. Progress seems very slow when it could be faster...
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Old 2020-08-30, 17:26   #2
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This is something which I do not understand the purpose of doing. There is so much repetition here as it is. My belief would be if a single factor is found, drop the exponent from the list and move on. The current ceiling for ECM's is 40M-1. The bulk of this work is being done below 1-million, according to the "Exponent Status Distribution" page on mersenne.org. Progress seems very slow when it could be faster...
Ah, but which progress.

Some people like to find all the factors.
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Old 2020-08-30, 17:49   #3
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Ah, but which progress.

Some people like to find all the factors.
Also, some people like to find the large PRP cofactors.
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Old 2020-08-30, 18:39   #4
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Also, some people like to find the large PRP cofactors.
Pretty much the same thing.
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Old 2020-08-31, 15:02   #5
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Ah, but which progress.

Some people like to find all the factors.
This progress. It does not seem to change much.

A curiosity: In my time here, I have ran 6,560 ECM tests and found 5 factors. This is from the V5 server. It does not take much to get on the ECM top producers list.
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Old 2020-08-31, 18:40   #6
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This progress. It does not seem to change much.

A curiosity: In my time here, I have ran 6,560 ECM tests and found 5 factors. This is from the V5 server. It does not take much to get on the ECM top producers list.
Ah, but that's the fun. Those candidates have proven themselves to be the toughest nuts to crack. Look around the old posts in the factoring forums and you'll find that when factors are found for the smallest remaining Mps, there's usually a non-trivial amount of fanfare. It's a somewhat rare feat, comparable to finding a Mersenne prime.
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Old 2020-09-01, 15:07   #7
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Speak of the devil... err, in this case, ryanp!
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Old 2020-09-03, 06:22   #8
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Speak of the devil... err, in this case, ryanp!
You should speak of him more often. Then we would not need to do so much LL/PRP
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