Package g0201_0300.s0263_ugly_number

Class Solution

java.lang.Object

g0201_0300.s0263_ugly_number.Solution

public class Solution
extends Object

263 - Ugly Number.<p>Easy</p> <p>An <strong>ugly number</strong> is a positive integer whose prime factors are limited to <code>2</code>, <code>3</code>, and <code>5</code>.</p> <p>Given an integer <code>n</code>, return <code>true</code> <em>if</em> <code>n</code> <em>is an <strong>ugly number</strong></em>.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> n = 6</p> <p><strong>Output:</strong> true</p> <p><strong>Explanation:</strong> 6 = 2 × 3</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> n = 8</p> <p><strong>Output:</strong> true</p> <p><strong>Explanation:</strong> 8 = 2 × 2 × 2</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> n = 14</p> <p><strong>Output:</strong> false</p> <p><strong>Explanation:</strong> 14 is not ugly since it includes the prime factor 7.</p> <p><strong>Example 4:</strong></p> <p><strong>Input:</strong> n = 1</p> <p><strong>Output:</strong> true</p> <p><strong>Explanation:</strong> 1 has no prime factors, therefore all of its prime factors are limited to 2, 3, and 5.</p> <p><strong>Constraints:</strong></p> <ul> <li><code>-2³¹ <= n <= 2³¹ - 1</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
boolean	isUgly(int n)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

isUgly

public boolean isUgly(int n)