prime number program in c | Sharp Tutorial

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C Program to check given number is prime or not

 #include <stdio.h>
#include <conio.h>
void main()
{
    int n=0, i=2, flag=0;
    printf("enter the no");
    scanf("%d",&n);
     while(i<n)
       {
          if(n%i==0)
             {
                 flag=1;
                 break;
              }
          i++;
       }
     if(flag==0) 
      printf("the given number is prime no");
     else
      printf("the given number is not prime no");
}

Output of the above program is as following.