Check whether a given number is an ugly number.

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- Tag: #uglynumber

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.

Github: code.dennyzhang.com

Credits To: leetcode.com

Leave me comments, if you have better ways to solve.

## https://code.dennyzhang.com/ugly-number class Solution(object): def isUgly(self, num): """ :type num: int :rtype: bool """ if num <= 0: return False for power in [2, 3, 5]: while num % power == 0 and num != 0: num = num / power return num == 1