The highest common factor of 108, 72 and 5a is a. What can be the least common multiple of 108, 72 and a?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 216
Given that
HCF of (108, 72 and 5a) is a
108 = 36 × 3
72 = 36 × 2
5a = a × 5
Hence, a = 36
LCM (108, 72, 36)
= 36 × 6 = 216