## 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.

March 2nd, 2012 at 4:29 pm

Why do you want to know?

March 3rd, 2012 at 8:38 am

Why do you ask?

March 3rd, 2012 at 4:29 pm

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.