ugly-number
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Points:
1
Time limit:
30.0s
Memory limit:
250M
Problem type
Allowed languages
Python
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 = 1 Output: true Explanation: 1 has no prime factors, therefore all of its prime factors are limited to 2, 3, and 5.
Example 3:
Input: n = 14 Output: false Explanation: 14 is not ugly since it includes the prime factor 7.
Constraints:
-2³¹ <= n <= 2³¹ - 1
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