Question

Find the least square number which is exactly divisible by each of the numbers 4,8,12.​

Answer 1

Answer:

The required solution of the problem is

Let find the LCM of the given numbers i.e. 8,12,15and20

That is,

2×2×2×5×3=120

But, 2,3,5 are not in pair so

multiply these with LCM

=120×3×5×2

=3600

Therefore there are 3600 numbers

Answer 2

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

2*2*2*5*3=1

Then,

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

so,

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

=120*30=3600