263. 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 factor 7.

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
        f=True
        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