Question

Find the least square number which is exactly divisible by each of the number 8;12;15 and 20

Answer 1

Hiii

Answer:

First,find the hcf of 8,12,15 and 20

8=2×2×2=2³

12=2×2×3=2²×3

15=3×5

20=2×2×5=2²×5

a number which is divisible by each of them should contain

2³x3x5

If it is a perfect square number,it should have even powers.

So,

2⁴×3²×5²=16×9×25

=3600

So,the answer is 3600

Hope it will help u