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 factor7.

Note that 1 is typically treated as an ugly number.

public class Solution {     public boolean isUgly(int num)            {            for(int i=2;i<6&&num>0;i++)            {            while(num%i==0)            {            num=num/i;            }            }            return num==1;            }}