/* C Program to verify a given no. is perfect or not */
#include<stdio.h>
int main()
{
int n,sum=0,i=1; printf("Enter a no:); scanf("%d",&n);
while(n>i)
{
if(n%i==0)
sum=sum+i;
i++;
}
if(sum==n)
printf("Perfect Number");
else
printf("Not Perfect Number");
return 0;
}
INPUT/OUTPUT:
Enter a no:28
Perfect Number
