Question

How to check whether a number is perfect or not in Go

Answer 1

// A perfect number is a positive integer that is equal to the sum
// of its positive divisors, excluding the number itself

package main

import "fmt"

func main() {
	num := 8128

	if isPerfectNumber(num) {
		fmt.Printf("%d is a Perfect Number\n", num)
	} else {
		fmt.Printf("%d is Not a Perfect Number\n", num)
	}
}

func isPerfectNumber(n int) bool {
	sum := 0

	for i := 1; i < n; i++ {
		if n%i == 0 {
			sum += i
		}
	}

	return sum == n
}


/*
run:

8128 is a Perfect Number

*/

 

70+ SQL courses for beginners and professionals