20050129, 22:50  #56 
Sep 2002
322_{16} Posts 
When will the webpage be updated with the new info and the next level, if any?

20050130, 06:21  #57  
"William"
May 2003
New Haven
2^{6}·37 Posts 
Quote:
I wrote up the status changes before I posted the congratulations, but I forgot to move the page to the external web site. Now visible at http://ElevenSmooth.com/Billion.html Work's been in crises mode for a while  I'm not sure if I'll get the new exponents out this weekend. 

20050130, 06:29  #58 
Sep 2002
1442_{8} Posts 
I have just one more question, if you don't mind. How many bits do numbers this large have to be factored to ultimately before we can be sure they are sufficiently proven not to be candidates any longer? I know have asked questions like this before, but I'm really stupid with math beyond very basic things.

20050130, 07:01  #59 
"William"
May 2003
New Haven
940_{16} Posts 
I'm sorry. We should probably repeat this more often.
Operation Billion Digitis is a bit of a joke  a lark  a whimsy There is no hope of proving any of the numbers prime. GIMPS now tests test numbers of roughly 10 million digits in a month. Test time grows faster than the square of the number of digits. These numbers have a hundred times the digits, so it would take over 10,000 months to prove one prime with today's computers. If Moore's law continues to double computer power every 18 months, we would still need over fifteen years to get the test time to under one year. This joke is organized like the first stage of a legitimate search. The first stage uses trial factoring. That first stage is feasible on today's computers. But the next stages would use P1, P+1, and ECM factoring  these stages are not feasible for numbers this large, so the joke is stuck in perpetual step 1. Personally, I keep a PPro 180 cranking away on this because it amuses me. It's actually one side of a dual processor machine that serves as my firewall and print server. The other side participates in ElevenSmooth and it's coming replacement project, but I prefer the less memory intensive activity for the second processor. Join in if you find this quirky activity appealing. But don't image that this is seriious. 
20050130, 17:19  #60 
Sep 2002
1100100010_{2} Posts 
I read the message on the webpage that it wouldn't be possible to do it with today's technology to totally prove them prime or not, but I never imagined it was a joke. I've seen people start projects to just get ahead of the game as much as they could, but those never lasted very long. I figured it was the same here.
Last fiddled with by Jwb52z on 20050130 at 17:20 
20050131, 03:16  #61  
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
7·1,427 Posts 
Quote:


20050131, 20:34  #62 
Sep 2002
2×401 Posts 
Uncwilly, even though the project is "just for fun" so to speak, I would call saving that much time worthwhile :)

20050201, 20:48  #63  
Banned
"Luigi"
Aug 2002
Team Italia
3×1,609 Posts 
Quote:
Luigi 

20050208, 18:17  #64 
Banned
"Luigi"
Aug 2002
Team Italia
3·1,609 Posts 
M3321931429 no factor from 2^64 to 2^72.
Carlo (& Luigi) 
20050211, 21:22  #65 
Apr 2004
PDX
2·3^{2} Posts 
Luigi,
I have not informed him. Didn't know it was big enough to worry about... Could you do that? Thanks Mark 
20050211, 23:35  #66  
Banned
"Luigi"
Aug 2002
Team Italia
3·1,609 Posts 
Quote:
Luigi 

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