Here's another new suggestion:

I do not quite know if this software can contribute,
but i just wanted to let you know, that we developed a collection
of functions (library, dll) for working with real big numbers.
(...numbers bigger than the normal data types a programmer can handle.)

It was made for Visual Basic, but can be used in
any language that can invoke a .DLL (such as C++, VBA in Excel, Access or
whatever)

It's the only DLL available for Windows for UNLIMITED BIG NUMBERS
with functions such as: +/-* Power2, Power10, MOD DIVIDE, ISPRIME, COMPARE,
Xor etc...

Calculations are sometimes even faster than you are used to, cause
everything was made in assembly. It's shareware and it is online on
http://www.big-numbers.com

David

"Frank Kabel" schreef in bericht
...
Keith wrote:
Thank you to all who replied.
I actually am attempting to generate a list of primes, so
the routine that tests for primes will work, and I'll also
look at the other suggestions.

thanks very much,

keith

Hi Keith
I would suggest to import an existing list of primes. e.g.
http://www.utm.edu/research/primes/lists/small/1000.txt

Frank