Question

Find the least square number exactly divisible by each of the following 8, 12, 15 and 20​

Answer 1

Answer:

3600

Step-by-step explanation:

First we need to find the LCM of the given numbers i.e. 8,12,15 and 20

LCM = 2 * 2 * 2 * 5 * 3 = 120

Then

As 2,3,5 are not in pairs, we need to multiply the LCM with 2 * 3 * 5 = 30

i.e. 120 * 30

So,

least perfect square number which is divisible by each of numbers 8, 12, 15, and 20

= 120 * 30 = 3600