leetcode263

263 easy 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
for i in [2,3,5]:
while num%i==0:
num/=i
return num==1