mersenneforum.org I just don't understand this
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2007-03-12, 18:30   #1
kuratkull

Mar 2007
Estonia

23·17 Posts
I just don't understand this

Hello :)

I have been actively surfing the forums for the past few days, but I haven't gotten a clear answer to my question.

After sr5sieve has finished sieving, what are the results? Only factors? Does this also find primes? Do I have to run the output in LLR to get something?
As I understand, I just have to sieve it, and send the output file via email. What will the data be used for?

What do these lines mean anyway?:
Quote:
 5866607967677 | 131848*5^1131027-1 5866623602911 | 200062*5^658953-1 5866639831141 | 280558*5^367225-1

Last fiddled with by kuratkull on 2007-03-12 at 18:35

 2007-03-12, 20:56 #2 michaf     Jan 2005 479 Posts sr5sieve is indeed the program used to search for FACTORS of the list of candidates to test for primes. Whenever you find a factor, you know a number is not prime, therefor you need not test it for primality anymore. (Saving time on that of course) 5866607967677 | 131848*5^1131027-1 means that the number 131848*5^1131027-1 has a factor 5866607967677. Thus that number isn't prime. In short, your data will be used to shorten the list of candidates to test for primality. The less candidates to test, the better.
 2007-03-12, 21:02 #3 kuratkull     Mar 2007 Estonia 23×17 Posts Hmm, nice and simple. Thx :)

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