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 14is not ugly since it includes another prime factor 7

Note :
That 1 is typically treated as an ugly number.

bool isUgly(int num) { for(int i=2;i<6&&num;i++){ while(num%i==0) num/=i; } return num==1; }