#!/usr/bin/python3

import pprint

from util.io import readvalue


def divisors(n):
	return [i for i in range(2, n) if not n % i]

def is_prime(n):
	return not divisors(n)

if( __name__ == "__main__"):
	
	def positive_int(s):
		v = int(s)
		if(v > 0):
			return v

	number = readvalue("n > ", positive_int)
	print("Divisors:")
	pprint.pprint(divisors(number))

	if(is_prime(number)):
		print("Also", number, "is a prime.")
	else:
		print(number, "is not a prime.")