Go4Expert - prime number program in C

Go4Expert (http://www.go4expert.com/)

- C (http://www.go4expert.com/forumdisplay.php?f=20)

- - prime number program in C (http://www.go4expert.com/showthread.php?t=4220)

prime number program in C

Hello all i am so new and trying to learn while i serve.
I am supposed to write a program that prints out the first n primes, where n is input by the user. I am supposed to write my program in its own directory in three files: primes.h, main.c, and is_prime.c
This is what the output is supposed to look like:

PRIMES WILL BE PRINTED.

How many do you want to see? 3000

Code:

    1:      2

    2:      3

    3:      5

    4:      7

    5:     11

   .....

   25:     97

   26:    101

 .......

 2998:  27431

 2999:  27437

 3000:  27449

 ........

10000:

This is the files that I have so far:
is_primes.h:

Code:

#include <stdio.h>

#include <stdlib.h>



int   is_prime(int n);

is_prime.c

Code:

#include "primes.h"



int is_prime(int n)

{

   int   k, limit;



   if (n == 2)

      return 1;

   if (n % 2 == 0)

      return 0;

   limit = n / 2;

   for (k = 3; k <= limit; k += 2)

      if (n % k == 0)

         return 0;

   return 1;

}

main.c

Code:

#include "primes.h"



int main(void)

{

   printf("PRIMES WILL BE PRINTED\n\n");

   printf("How many do you want to see?     \n");

   scanf("%5d", 

   return 0;

}

I dont know how to link it to the files and what to fill in the main.c file to make it work. Some guidance would be great

Re: prime number program in C

Please use the Code Block when you have code in the posts
Give an appropriate Title. Your title said Visual Basic and you gave the code of C/C++. I edited it for you.
You just happen to post in Introduce yourself and I moved to C-C++ for better response.
Also you had the same post as an article of C-C++

Re: prime number program in C

Checkout this thread http://www.go4expert.com/showthread.php?t=2049 , I hope this will be of help!

Re: prime number program in C

It depends on your compiler. Read your compiler instructions, then if you don't understand them, post back, naming your system and compiler.

Re: prime number program in C

You need to compile them together or what?

if yes, one way is to copy "is_primes.h" and "is_prime.c" in libraly of Builder or visual studio(if you have)
to "include" - you ll find it , where your program(builder/studio) is installed. if you cant (so you have linux and "vim"), then you collect ALL this programs in compiling directory and write, as usual , "gcc..."