```
public class Solution
extends Object
```
263 - Ugly Number\. Easy An **ugly number** is a positive integer whose prime factors are limited to `2`, `3`, and `5`. Given an integer `n`, return `true` _if_ `n` _is an **ugly number**_. **Example 1:** **Input:** n = 6 **Output:** true **Explanation:** 6 = 2 × 3 **Example 2:** **Input:** n = 8 **Output:** true **Explanation:** 8 = 2 × 2 × 2 **Example 3:** **Input:** n = 14 **Output:** false **Explanation:** 14 is not ugly since it includes the prime factor 7. **Example 4:** **Input:** n = 1 **Output:** true **Explanation:** 1 has no prime factors, therefore all of its prime factors are limited to 2, 3, and 5. **Constraints:** * -2³¹ <= n <= 2³¹ - 1

Class Solution