[NBLUG/talk] OT: First 500 prime numbers

Steve Zimmerman stevetux at sonic.net
Thu Jun 5 16:50:04 PDT 2003


Wow!  This program works like a charm.  Thanks, Micxz!

	-- Steve Zimmerman


On Thursday 05 June 2003 04:25 pm, Micxz wrote:
> Glad to help you get your files up;
>
> I'm not much for C programming but looky here:
>
> /*
> *
> * Dumb program that generates prime numbers.
> */
> #include <stdio.h>
> #include <stdlib.h>
>
> main(){
>     int this_number, divisor, not_prime;
>
>     this_number = 3;
>
>     while(this_number < 10000){
>             divisor = this_number / 2;
>             not_prime = 0;
>             while(divisor > 1){
>                     if(this_number % divisor == 0){
>                             not_prime = 1;
>                             divisor = 0;
>                     }
>                     else
>                             divisor = divisor-1;
>             }
>
>             if(not_prime == 0)
>                     printf("%d is a prime number\n", this_number);
>             this_number = this_number + 1;
>     }
>     exit(EXIT_SUCCESS);
> }
>
> I found this here:
> http://publications.gbdirect.co.uk/c_book/chapter1/some_more_programs.html
>
> I love google;
>
> Micxz
>
> Steve Zimmerman wrote:
> > I'm trying to make a program in C that prints out a table
> > of the first 10 prime numbers, in an endeavor to eventually
> > create a program that prints out the first 500 prime numbers
> > (Knuth, v1, p. 147).  So far I am without success.  The file is
> > www.sonic.net/~stevetux/prime2.c.  See prime1.c in the same
> > directory for my successful half try.
> >
> > Anyone want to give it a shot?  I'll appreciate advice, too, but
> > what I'm really looking for is code.  Thanks.
> >
> >         -- Steve Zimmerman
> >
> > _______________________________________________
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>
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-- 
Steve Zimmerman



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