Question

find the smallest number by which each of the following numbers must be multiplied to obtain a perfect cube 243​

Answer 1

Answer: 3

Step-by-step explanation:

First, do the prime factorisation of 243

243 = 3 × 3 × 3 × 3 × 3

243 = 3² × 3² × 3

So, clearly we need one more "3" to make it a perfect square.

Thus, answer = 3