g0201_0300.s0263_ugly_number

Class Solution

java.lang.Object

g0201_0300.s0263_ugly_number.Solution

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

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
boolean	isUgly(int n)

Methods inherited from class java.lang.Object

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

Constructor Detail

Solution

public Solution()

Method Detail

isUgly

public boolean isUgly(int n)