Write a program to input an integer number and check whether it is prime or not.

#include<stdio.h>

#include<conio.h>

void main()

  {

    int n,c=0,i;

    clrscr();

    printf("\nEnter any integer number: ");

    scanf("%d",&n);

    for(i=1;i<=n;i++)

    {

     if(n%i==0)

      c=c+1;

    }

     if(c==2)

     printf("%d is prime number",n);

     else

     printf("%d is not prime number",n);

     getch();

  }