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Kotlin-based LeetCode algorithm problem solutions, regularly updated
2413\. Smallest Even Multiple
Easy
Given a **positive** integer `n`, return _the smallest positive integer that is a multiple of **both**_ `2` _and_ `n`.
**Example 1:**
**Input:** n = 5
**Output:** 10
**Explanation:** The smallest multiple of both 5 and 2 is 10.
**Example 2:**
**Input:** n = 6
**Output:** 6
**Explanation:** The smallest multiple of both 6 and 2 is 6. Note that a number is a multiple of itself.
**Constraints:**
* `1 <= n <= 150`