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Old 2018-01-11, 14:21   #101
rogue
 
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"Mark"
Apr 2003
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Quote:
Originally Posted by gd_barnes View Post
I'm wondering why no searches were done for n>1K for bases 56 and 58.

I ran both bases myself for n=1 to n=2500. The web page is correct for all n<=1000. I found 4 additional primes for n=1000-2500. Attached are all of the primes that I found. Here are the 4 new primes:

(56^1698-1)^2-2

(58^1720-1)^2-2

(58^1734+1)^2-2
(58^2354+1)^2-2

I would like to search the bases to n=10K but I could not make cksieve work on my machine. So I just trial-factored in PFGW for the above. Every time I ran cksieve at the command prompt, I got a Windows error message as follows:
Code:
cksieve.exe has stopped working

A problem caused the program to stop working correctly.
Windows will close the program and notify you if a solution is available.
My machine is 64-bit, the O.S. is Windows 7, and there is 4 GB RAM. It is an Intel I7 running @ 2.67 Ghz. I have checked and even temporarily disabled my AntiVirus to make sure it wasn't being blocked.

Has anyone else had problems running cksieve?
Hi Gary, thanks for joining.

I do not know why cksieve is crashing. This is the first that I've heard of anyone having such a problem. Does it crash immediately? What command line arguments are you passing? Can you build from source?
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