Write a C Program To Check Wheather Inputed Number is Prime Or Not

#include<stdio.h>

#include<conio.h>

int main()

{

            int i,n,flag=0;    // declare variable i, n & flag and initialize flag with 0

            clrscr();

            printf("\n Enter the number : ");

            scanf("%d",&n);

            for(i=2;i<n;i++)

            {

                        if(n%i==0)

                        {

                                    flag=1;

                                    break;

                        }

            }

            if(flag==0)

            {

                        printf("\n %d is a Prime number",n);

            }

            else

            {

                        printf("\n %d ia not a Prime number",n);

            }

            getch();

            return 0;

}