Ugly Number

Write a program to check whether a given number is an ugly number.

Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example,6, 8 are ugly while 14 is not ugly since it includes another prime factor7.

Note that 1 is typically treated as an ugly number

class Solution(object):    def isUgly(self, num):        """        :type num: int        :rtype: bool        """        """        if num == 0:            return False                    while num % 2 == 0:            num /= 2                while num % 3 == 0:            num /= 3                while num % 5 == 0:            num /= 5                    if num == 1:            return True        else:            return False        """        if num <= 0:            return False                for x in [2,3,5]:            while num%x == 0:                num /= x                    return num == 1