Thread: Perfect Numbers

Hey everyone hope all is well! Its that time of the week again and Im stuck already! lol I think I have gotten far this time, but still cant get things right.

The project calls for a program to find all perfect numbers between 2 and 10,000. The program will determine whether a number is perfect by calling the function "isperfect". The function returns 1 if x is perfect and 0 if not. Print each perfect number on a seperate line along with its expansion as a sum of factors. The factors should appear in ascending order. For example the first line should read.

6 = 1 + 2 + 3

So I have managed to get the perfect number. Im not sure how to print out the sum of factors because thats not really how I wrote it. So where should I go from here?

Code:

#include<stdio.h>
int isperfect(int x)
{
    int total=0,i=0;
    for (i=0;i<(x/2);i++)
    {
        if (!(x%(i+1)))
        {
            total+=i+1;
        }
    }
    if (total==x) return 1;
    return 0;
}

int main(void)
{
    int a=2,b=10000;
    for(; a<b; a++)
    if(isperfect(a))
    printf("%d TEST TEST\n",a,);
    return 0;
}