sr5sieve version 1.2.3 is out here.
"New" math project available with teams and stats.
The goal is to look for the lowest Sierpinski and Riesel numbers in base 5.
Here's a quote:
Stats are available here (thanks Lars)he lowest even Reisel number is mooted to be 346802 and the lowest even Sierpinski 159986. That is to say 346802.5^n-1 is always composite for every n, and 159986.5^n+1 is similarly endowed.
The Sierpinskis look the easiest to look at. We have to show there is a prime for every even k (in the power series k.5^n+1) less than k=159986 and I have checked so far up to n=18468 for all of the remaining values of k shown below. All other values of k have a prime at less than n=18468
Sieve - Clients (windows, linux)
LLRNET- Client (windows only)
How to join or create a team?
Just post here.
How to run the LLRNET client?
How to run the sieve client?
Well, go here and reserve a sieve range. Then download the dat file from one of the following links:
Create a sr5work.txt and to sieve the range 50 billion to 55 billion (i.e. 50e9 to 55e9), you add a single line in sr5work.txt like this
Then start the client like this:50,55
Now is up to Bok to make some fine stats and create a special Free-DC Forum.start /min /low sr5sieve.exe
it's even 1.3.2 now ... this build remember the number of factors of the actual range
We need to find four more primes to make this the best year in the project. To see the number of primes found by year, look at the Primes Reported paragraph of the Description post. This is also a good place to find out more about the project.
Using PrimeScoring the years shape up like this:For more information about the contest please see this thread.Code:2006 9319511 2010 8390964 2007 4763138 2005 3301224 2008 1907691 2004 386550
Last edited by Joe O; 11-05-2010 at 08:24 PM.
For more information see this post.