【leetcode】Ugly Number【java】

题目：

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.
给一个数判断他的因数是不是只包含2、3、5
思路：

将这个数反复对{2、3、5}中的数取模，若为0则继续判断，若不为0则这个数肯定不是Ugly Number

代码：