Closed pradeexsu closed 4 years ago
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.
6
true
6 = 2 × 3
8
8 = 2 × 2 × 2
14
false
14 is not ugly since it includes another prime factor 7.
Note:
Hello want to work on this
Example 1:
Input:
6
Output:
true
Explanation:
6 = 2 × 3
Example 2:
Input:
8
Output:
true
Explanation:
8 = 2 × 2 × 2
Example 3:
Input:
14
Output:
false
Explanation:
14 is not ugly since it includes another prime factor 7.
Note: