Question

Which of the following will not be a number of the series $1,8,27,64,125,..$?

• A. $256$
• B. $512$
• C. $729$
• D. $1000$

Answer 1

The correct option is A $256$

The given series consists of cubes of natural numbers only. $256$ is not the cube of any natural number.
Hence, option A is the correct answer.