Start learning →

The number 1 is:

Aneither prime nor composite
Ba composite number
Ca prime number
Dan irrational number
Answer & Solution
Correct answer: A. neither prime nor composite
1 has only one factor, so it is neither prime nor composite.
Practise this question with Quill — GMAT →

Keep practising Quantitative Reasoning

Browse all Quantitative Reasoning questions for GMAT, or explore more Quantitative Reasoning topics.

Start a Quantitative Reasoning lesson →