#include <stdio.h>
#include <conio.h>
    int prime(int n);
    void main()
    {
        int i,n;
        clrscr();
        printf("\n Enter The Number : ");
        scanf("%d",&n);
        i=prime(n);
        if(i==1)
            printf("\Given Number Is prime ");
        else
            printf("\n Given Number Is Not Prime ");
        getch();
    }
    int prime(int n)
    {
        int i;
        if(n<=2)
            return 1;
        elsefor(i=2;i<n;i++)
        {
            if(n%i==0)
                return 0;
        }
        return 1;
    }

/*
     ******
     OUTPUT
     ******


     Enter The Number : 4

     Given Number Is Not Prime
*/