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

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Which of the following will not be a number of the series 1, 8, 27, 64, 125,.....? Answer: 256

The given series consists of cubes of natural numbers only. 256 is not the cube of any natural number.

Question context

This question is part of 💬 Verbal Reasoning within the broader 🧠 Aptitude Mastery subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.