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 2005-08-08, 07:52 #1 OmbooHankvald     May 2005 Copenhagen, Denmark 172 Posts My very own guidesite update thread This thread is hereby reserved by me to report whenever my site at http://www.geocities.com/omboohankvald/ gets updated . And it has been today! It now contains info on 100MDPP, 321, PSP, SoB SRB5 and the Sierpinski Problem. More to come
 2005-08-10, 07:30 #2 OmbooHankvald     May 2005 Copenhagen, Denmark 172 Posts Update Update: + reservation picture on PSP + programs to index of mersenneforum-projects + credits (may be removed if someone gets offended) * changed info on LLRNET Feel free to comment it here or send me a mail (link on website) with suggestions. Last fiddled with by OmbooHankvald on 2005-08-10 at 07:31
 2005-08-11, 08:08 #3 OmbooHankvald     May 2005 Copenhagen, Denmark 172 Posts Update Update: * Removed changes to LLRNET Feel free to comment it here or send me a mail (link on website) with suggestions.
 2005-08-15, 17:59 #4 OmbooHankvald     May 2005 Copenhagen, Denmark 172 Posts Update Update: + Added guide to ECMNet (here) Feel free to comment it here or send me a mail (link on website) with suggestions. Last fiddled with by OmbooHankvald on 2005-08-15 at 17:59
 2005-08-29, 13:53 #5 OmbooHankvald     May 2005 Copenhagen, Denmark 172 Posts Update Update: * Changed LLRNET server of PSP * Changed ECM server of Cunningham Project Feel free to comment it here or send me a mail (link on website) with suggestions.
 2005-08-29, 14:43 #6 Mystwalker     Jul 2004 Potsdam, Germany 3·277 Posts Concerning the ECM client guide, you could also set a link to the corresponding forum for the cunningham tables: http://www.mersenneforum.org/forumdisplay.php?f=51 Apart from that (and the fact that it is done with Word ), I like your guide(s).
2005-08-29, 18:49   #7
OmbooHankvald

May 2005
Copenhagen, Denmark

172 Posts
Update

Update:

+ Added a different listing of the projects (here)
* Changed the front page
! Opened for outside contributions - you can now actively contribute to the contents of the site (if you want). Guides written by others are welcome

Feel free to comment it here or send me a mail (link on website) with suggestions.

Quote:
 Originally Posted by Mystwalker Concerning the ECM client guide, you could also set a link to the corresponding forum for the cunningham tables: http://www.mersenneforum.org/forumdisplay.php?f=51
I would, but I still don't understand their purpose .
But now that I've opened for outside guides, maybe someone else can help?

Quote:
 Originally Posted by Mystwalker Apart from that (and the fact that it is done with Word ), I like your guide(s).
Thanks! I have never tried any HTML and I don't know how to design websites. Any suggestions would be welcome.

Last fiddled with by OmbooHankvald on 2005-08-29 at 18:57

 2005-08-29, 20:52 #8 Citrix     Jun 2003 23·199 Posts The order of the list Listed by completion time of one work unit: is screwed up. I would recommend you do a test of each and then decide. Citrix
2005-08-29, 21:31   #9
ET_
Banned

"Luigi"
Aug 2002
Team Italia

24·3·101 Posts

Quote:
 Originally Posted by OmbooHankvald Thanks! I have never tried any HTML and I don't know how to design websites. Any suggestions would be welcome.
Try "save as HTML" on your word document...

Luigi

2005-08-29, 21:49   #10
fetofs

Aug 2005
Brazil

2×181 Posts

Quote:
 Originally Posted by OmbooHankvald Q: WTF are these "Sierpinski numbers"??? A: Sierpinski numbers are numbers of the form: ($\large k*2^n+1$) which are never primes/always composites.
Aren't Sierpinski numbers the k numbers that are composite for any n? The way you told it seems like $\large 5*2^2+1$ is a Sierpinski number. It will be always composite, I think...
You already gave a good definition in the end of your FAQ. You said that "k's that doesn't ever produce primes in $\large k*2^n+1$ are Sierpinski numbers"

2005-08-29, 22:06   #11
Mystwalker

Jul 2004
Potsdam, Germany

3×277 Posts

Quote:
 Originally Posted by OmbooHankvald I would, but I still don't understand their purpose . But now that I've opened for outside guides, maybe someone else can help?
The Cunningham Tables contain numbers of the form b^n +/- 1, with (currently) 2 =< b =< 12 and n so that the resulting number is "not too big" (~300 digits right now).
There are several tables, one for each "b" and "+" resp. "-" (The table "5-" for example holds the numbers of the form 5^n-1).

In the tables of this forum contain only (at least partly) unfactored numbers. You can see

1) The short form of the number
2) The size of the unfactored part (--> the composite)
3) The effort that has been taken so far to factor that number
4) The number itself in its decimal expression.

Now, if you want to help factoring, just* choose a number and run curves on it, afterwards report your effort and factors, if found. That's it!

*I know, it's not that easy in the beginning, but after some time, it's no problem.

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