A Program to find out the perfect number using c program

         #include<stdio.h>

int main()

{
         int n,i=1,sum=0;
         printf("\nEnter a number:-");
         scanf("%d",&n);
         while(i<n)

        {
                  if(n%i==0)
                  sum=sum+i;
                  i++;
        }
        if(sum==n)
              printf("\nThe no %d is a perfect number",i);
       else
              printf("\nThe no %d is not a perfect number",i);
        return 0;
}

OUTPUT:

Enter a number:-
6

The number 6 is a perfact number!_