Ask a Teacher

Search



FIND THE SMALLESTSQARE NUMBER THAT IS DIVISBLE BY Eachof thenumber 8,15and20

8 = 2 x 2 x 2

15 = 3 x 5

20 = 2 x 2 x 5

So, LCM = 2 x 2 x 2 x 3 x 5=120

Since 3 and 5 are not in pair in LCM’s factor, we need to multiply 120 by 5 and 3 to make it a perfect square.

Required Number = 120 x 3 x 5 = 1800


comments powered by Disqus