This is a program that finds all perfect numbers that exist from 1 through 50,00

Question

This is a program that finds all perfect numbers that exist from 1 through 50,000. The problem i'm having is that whenever I run the program it only prints the number 3. I assume there's a logical error somewhere..but i can't find it. Can you see what is wrong?

In case you dont know a perfect number is a number that is the sum of its divisors. so for example:

6 is a perfect number because its divisors 1+2+3 = 6

28 is a perfect number because its divisors 1+2+4+7+14=28
//------------------------------------code----------------------------


import java.io.*;
import java.util.Scanner;
///////////////////////////////////////////////////
class Hw04
{
//-----------------------------------------------------------------------
   public static void main ( String [] args ) throws Exception
   {
      for ( int i = 1 ; i <= 50000 ; i++ )
      if ( isPerfect(i) ) System.out.println(i);
   }
//-----------------------------------------------------------------------
public static boolean isPerfect ( int n )
   {
      boolean perfectNum;
      int sum = 0;
      for (int divider = 1; divider < n; divider++)
      {
         if( n % divider == 0);
            sum += divider;
         if (sum == n)
            perfectNum = true;
      }
      return perfectNum;
   }
//-----------------------------------------------------------------------
}

Explanation / Answer

import java.io.*; import java.util.Scanner; /////////////////////////////////////////////////// class Hw04 { //----------------------------------------------------------------------- public static void main ( String [] args ) throws Exception { for ( int i = 1 ; i

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.