Thread: Sierpinski/Riesel Base 10 View Single Post
2007-11-18, 02:25   #9
gd_barnes

May 2007
Kansas; USA

3·7·487 Posts
Web page of known k's and primes for k*10^n-1

Quote:
 Originally Posted by rogue I'm PRP testing right now. I've gone to about 140,000 with no primes. I'll post a file tomorrow.
Rogue, I am compiling an extensive list of all k*10^n-1 primes and how far the k's have been searched at gbarnes017.googlepages.com/primes-kx10n-1.htm.

I have some questions that will help me keep the data accurate:

1. Which k's of the k*10^n-1 form that you have searched to n=140,000?

2. I show that the only k's remaining to find a prime below the lowest Riesel k=10176 are k=4421, 7019, and 8579. Is that correct? (I'm also guessing that those are the k's you've tested to n=140,000.)

3. Do you know of any other Riesel k's base 10 and their covering sets of factors for k>10176?

Also, if you can spare a few mins., would you mind checking my page for a few of the k's that you have searched, their primes and ranges? That would help me greatly. I have included all known info. from several souces on the page (shown at the bottom including you as a contributor) as well as plenty of add'l. info. from ranges that I have searched.

Thank you,
Gary