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Old 2016-11-20, 14:09   #1
sr13798
 
Nov 2016

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Default Found a factor during TF, common I know but what does it mean?

Here is the factor info:
http://www.mersenne.ca/exponent/129443641
Just curious as to how this helps the overall project or if it even does. I am not a math genius by any means.
Thanks!
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Old 2016-11-20, 14:13   #2
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Quote:
Originally Posted by sr13798 View Post
Here is the factor info:
http://www.mersenne.ca/exponent/129443641
Just curious as to how this helps the overall project or if it even does. I am not a math genius by any means.
Thanks!
Congrats. Now you know the associated Mersenne number is not prime, and you just saved having to do two expensive LL tests.
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Old 2016-11-20, 14:17   #3
sr13798
 
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So the system automatically removes it from future work?
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Old 2016-11-20, 14:19   #4
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Yup.
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Old 2016-11-20, 14:23   #5
sr13798
 
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Cool. I have an FX8350 doing TF and an I7-6700k running first time LL's. I figured one to help the project and one to look for the next big one. lol
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Old 2016-11-20, 18:36   #6
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Quote:
Originally Posted by sr13798 View Post
Cool. I have an FX8350 doing TF and an I7-6700k running first time LL's. I figured one to help the project and one to look for the next big one. lol
You would get more out of the 8350 doing Double Check LL testing. CPUs are greatly outclassed by GPUs for TF, and doing it on a less efficient chip is even less desirable.

Don't get me wrong, I run AMD FX as well, doing DC. You might as well throw the higher power consumption of an FX (relative to Intel) at work which gets the most out of it. Besides, there is still the chance that DC will turn up the next Mersenne Prime.

All work contributes to the project. It's just that some hardware does better at certain types of work.
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Old 2016-11-21, 22:21   #7
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If you enjoy searching for factors and your AMD machine has a suitable (read: 4+ GB) amount of memory, you might consider putting it to P-1 work.
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Old 2016-11-22, 01:56   #8
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Quote:
Originally Posted by lycorn View Post
If you enjoy searching for factors and your AMD machine has a suitable (read: 4+ GB) amount of memory, you might consider putting it to P-1 work.
Excellent point!
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