diff --git a/javascript/1780-check-if-number-is-a-sum-of-powers-of-three.js b/javascript/1780-check-if-number-is-a-sum-of-powers-of-three.js
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+++ b/javascript/1780-check-if-number-is-a-sum-of-powers-of-three.js
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+/**
+ * Brute Force | Recursion | Math
+ * Time O(2^14) | Space O(1)
+ * https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three
+ * @param {number} n
+ * @return {boolean}
+ */
+var checkPowersOfThree = function(n) {
+
+    const dfs = (currSum, power) => {
+
+        if (currSum === n) return true;
+        if (power > 14) return false;
+        return dfs(currSum + 3**power, power+1) || dfs(currSum, power+1);
+    }
+
+    return dfs(0, 0);
+};