Smallest Even Multiple
Given a positive integer n, return the smallest positive integer that is a multiple of both 2 and n.
Example 1
Input
n = 5Output
10The smallest multiple of both 5 and 2 is 10.
Example 2
Input
n = 6Output
6The smallest multiple of both 6 and 2 is 6 because a number is a multiple of itself.
Constraints
- 1 <= n <= 150