Question

16. What is the smallest number by which 1600 must be divided so that the
quotient is a perfect cube?
(T-1)(B-2013)​

Answer 1

The prime factorisation of 1600 is

1600 = 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5

Prime factor 5 does not appear in a group of 3.

Clearly, to make 1600 a perfect cube it must be divided by 5 x 5, i.e., 25. Then, we have:

1600 

Answer 2

Answer:

4 is the answer.

Step-by-step explanation: