Question

4. Find the least perfect square that is exactly divisible by 8, 9 and 10.

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Answer 1

The least number divisible by each one of 8,9 and 10 is their LCM.

Now, LCM of 8,9,10=(2×4×9×5)=360

By Prime factorization, we get

360=2×2 ×2×3×3 ×5

To make it a perfect square it must be multiplied by (2×5),i.e.,10

Hence,required number =(360×10)=3600

Ans :3600

Answer 2

Answer:

3600 is your ans

thanku