## Basic College Mathematics (10th Edition)

Multiples of 9: 9, 18, 27, 36, 45 In order to find the LCM of 4 and 9, we must find the first multiple of 9 that is also divisible by 4. 9, 18, and 27 are not divisible by 4. $36\div4=9$ Therefore, 36 is the LCM of 4 and 9.