Perfect Number Program in C

 Perfect Number Program in C

Do Check My Video For Perfect Number:

  Perfect Number : 

In mathematics, a perfect number is a positive

integer that is equal to the sum of its positive divisors, excluding the number itself.

ex : 6 = 1,2,3 <  6  

 1+2+3 =6

 ex: 5 : 1 

sum = 1 !=5 

5 is not perfect number

Perfect Numbers examples : 6,28,496,8128

Program to check given number is perfect or not:

#include<stdio.h>

int main(){

int n;

printf("Enter the number: ");

scanf("%d",&n);

int sum = 0,i;

for(i=1;i<n;i++){

if(n%i==0){

sum = sum + i;

}

}

if(sum == n){

printf("%d is a perfect Number",n);

}else{

printf("%d is not perfect Number",n);

}

return 0;

}