Question

20. Is 9720 a perfect cube? If not the smallest number by which it should be divided to get a perfect cube.I want with method dont give simple ans​

Answer 1

Answer:

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

Step-by-step explanation:

factors of 9720

2×2×2×3×3×3×3×3×5

here a triplet of 3 and 5 is not completed.

so,9720 is not a perfect cube.

if we divide the number(9720) by 3×3×5 Or 45 then

9720÷45=2×2×2×3×3×3=216=(6)^3

now 216 is a perfect cube