326.power-of-three.js

/*
 * @lc app=leetcode id=326 lang=javascript
 *
 * [326] Power of Three
 */

// @lc code=start
/**
 * @param {number} n
 * @return {boolean}
 */
var isPowerOfThree = function(n) {
    if (n === 0) return false
    while (n % 3 === 0) {
        n /= 3
    }
    return n === 1
};
// @lc code=end