326. Power of Three

Easy

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Given an integer n, return true if it is a power of three. Otherwise, return false.

An integer n is a power of three, if there exists an integer x such that n == 3x.

Example 1:

Input: n = 27
Output:
 true

Example 2:

Input: n = 0
Output:
 false

Example 3:

Input: n = 9
Output:
 true

Constraints:

• -231 <= n <= 231 - 1

Follow up: Could you solve it without loops/recursion?

class Solution:
    def isPowerOfThree(self, n: int) -> bool:
        return n > 0 and (log10(n)/log10(3)).is_integer()