Which is the least number exactly divisible by 6, 9, 12 and 15?
Show answer & explanation
Correct answer: A
Explanation
Given:
Numbers = 6, 9, 12, 15
According to the formula:
The smallest number = LCM (6, 9, 12, 15)
6 = 2 × 3
9 = 3²
12 = 2² × 3
15 = 3 × 5
LCM = 2² × 3² × 5 = 4 × 9 × 5 = 180