20090610, 17:55  #1 
"Kyle"
Feb 2005
Somewhere near M50..sshh!
2·3·149 Posts 
Enlisting the Help of Universities for GIMPS
This fall I will be attending a university having graduated from a community college in May. I have already met the President and he has quite a reputation for being forward thinking and is well liked by both faculty and students. I would like to present a case to him for enlisting some of the CPU resources on campus for aiding GIMPS. Being a university, these resources are plentiful as there are many "idle" computers sitting around on campus. I would not even suggest this except for the fact that I think he would be open to it. However, I would like to present a structured case including the current status of the project and some background information. The background information is rather easy to obtain... as is the majority of the status information. However, I would like to include the overall status of the project and not just the main range of testing. The PrimeNet page only gives information for exponents up to 100M where as I want to make a short and concise table that also includes 100M digit prefactor project and Operation Billion Digits. This information is not as easy to obtain so I have a few questions to ask. Any help in answering them will be greatly appreciated as well as any input or advice on my idea.
1) If Trial Factoring or P1 finds a factor, is that the end of it and no double check is assigned where as with an LL a double check is always done? 2) Where can I find a page that displays information on exponents 100M to the cutoff for one billion digits around 332M? I could not see a homepage for this project. 3) I know that Operation Billion Digits has a homepage...however I believe that some indicated more exponents had been trial factored than were indicated on the table on said homepage. Where can I get that information? Thanks! If I think of anything else I will post it. 
20090610, 18:19  #2  
Account Deleted
"Tim Sorbera"
Aug 2006
San Antonio, TX USA
10AB_{16} Posts 
Quote:
Good luck with your suggestion. Sorry, but I don't know the answers to your other questions. 

20090610, 18:23  #3  
"Kyle"
Feb 2005
Somewhere near M50..sshh!
1576_{8} Posts 
Quote:


20090610, 18:42  #4 
Nov 2008
2×3^{3}×43 Posts 

20090610, 19:21  #5 
"Kyle"
Feb 2005
Somewhere near M50..sshh!
37E_{16} Posts 
I just realized this. How embarrassing. Okay... so I am in the process of getting information for exponents 0 to 1 billion... but I imagine that past 100M or so this PrimeNet table may not have all the information for people that are doing individual work for the 100M digit prefactor project?? (100 M digits starting at 332M roughly)

20090610, 19:57  #6 
P90 years forever!
Aug 2002
Yeehaw, FL
2^{4}·457 Posts 
Be sure to let them know that it costs money to run this project. A rough estimate is 50 watts per machine.

20090610, 20:20  #7 
Oct 2008
n00bville
5^{2}×29 Posts 

20090610, 21:59  #8 
"Kyle"
Feb 2005
Somewhere near M50..sshh!
894_{10} Posts 
I'll check. I thought of another question...
Is there a quick way I can find out how many primes are between 332,192,831 and 333,000,000? Thanks! 
20090610, 22:32  #9  
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2^{2}×7^{2}×47 Posts 
Quote:
Come join us over here: http://www.mersenneforum.org/showthread.php?t=10693 Using the new LMH minihowto, one could get numerous assignments in the range. Last fiddled with by Uncwilly on 20090610 at 22:32 

20090610, 22:46  #10 
"Kyle"
Feb 2005
Somewhere near M50..sshh!
2×3×149 Posts 
I knew how many from 332 to 333M but I wasn't sure if I could find out from an intermittent exponents.

20090610, 22:55  #11  
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2^{2}·7^{2}·47 Posts 
Quote:
http://primes.utm.edu/links/ 

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