Breaking News: Grepper is joining You.com. Read the official announcement!

perfect number in java

Rahul Sarkar answered on October 22, 2022 Popularity 8/10 Helpfulness 5/10

answer perfect number in java

perfect number in java

Comment

// Java program to check if a given
// number is perfect or not
  
class GFG {
  
    // Returns true if n is perfect
    static boolean isPerfect(int n)
    {
        // 1 is not a perfect number
        if (n == 1)
            return false;
  
        // sum will store the sum of proper divisors
        // As 1 is a proper divisor for all numbers
        // initialised sum with 1
        int sum = 1;
  
        // Looping through the numbers to check if they are
        // divisors or not
        for (int i = 2; i < n; i++) {
            
            if (n % i == 0) {
                sum += i;
            }
            
        }
  
        // If sum of divisors is equal to
        // n, then n is a perfect number
        if (sum == n)
            return true;
  
        return false;
    }
  
    // Driver program
    public static void main(String[] args)
    {
        int n = 6;
        
        // Call isPerfect function to
        // check if the number is perfect or not.
        if (isPerfect(n))
            System.out.println(n + " is a perfect number");
        else
            System.out.println(
                n + " is not a perfect number");
    }
}

Popularity 8/10 Helpfulness 5/10 Language java

Source: www.geeksforgeeks.org

Tags: java perfect

Link to this answer
Share Copy Link

Contributed on Oct 22 2022

Rahul Sarkar

0 Answers Avg Quality 2/10

perfect number in java

Contents

More Related Answers

perfect number in java

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.