NOTE:
To calculate more than two numbers, put in 2 numbers to start with, and
then do the the others in pairs of 2.
Ex: LCM(24, 28, 32, 36)
LCM(24, 28) = 168
LCM(32,36) = 288
LCM(168,288) =
2016
Ex 2: LCM(12,32,31)
LCM(12, 32) = 96
LCM(96,31) = 2976