Create a function that takes an array of three numbers and returns the Least Common Multiple (LCM).
The LCM is the smallest positive number that is a multiple of two or more numbers. In our case, we are dealing with three numbers.
Thus, the least common multiple of 3, 4, and 12 is 12.
lcmThree(5, 7, 13) ➞ 455
lcmThree(104, 105, 107) ➞ 1168440
lcmThree(19, 47, 43) ➞ 38399N/A