Question

By which least no 9720is multiply to get perfecf cube

Answer 1

Answer:

45 is the smallest number by which 9720 should be divided to get a perfect cube.

Answer 2

To find whether 9720 is a perfect square or not break it down as a product of its prime factors.

9720= 2×2×2×3×3×3×3×3×5

By grouping these factors in pairs, we see that one 2, one 3 and one 5 are left unpaired.

So the smallest number by which 9720 should be multiplied to make it a perfect square is =2×3×5=30