Is 1 a prime number?

- Is 1 a prime number?
- Is 0 a natural number?
- Is it polite to answer a question with a question?
- Who am I to know?

What are your answers? What do the questions mean? Are they important? Operators are standing by for your comments.

3 Responses to “Is 1 a prime number?”

  1. Nick Brown Says:

    Why do you want to know?

  2. Jan Nordgreen Says:

    Why do you ask?

  3. Richard Sabey Says:

    1 is not a prime. Why? Because this follows from the definition of “prime”. Why not define “prime” in a way that makes 1 a prime? Because then you lose the fundamental theorem of arithmetic.

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