Are all prime numbers odd?

1 Answer
Write your answer here...
Start with a one sentence answer
Then teach the underlying concepts
Don't copy without citing sources
preview
?

Answer

Write a one sentence answer...

Answer:

Explanation

Explain in detail...

Explanation:

I want someone to double check my answer

Describe your changes (optional) 200

33
Sep 7, 2015

Answer:

No.
There is one exception, the number 2, which is the only even prime number

Explanation:

By definition a prime number has only 2 factors - itself and 1.

Hence the smallest natural prime number is 2, and the only on that is even. All other prime numbers are odd, and there are infinitely many prime numbers. (can be proven).

Was this helpful? Let the contributor know!
1500
Impact of this question
5334 views around the world
You can reuse this answer
Creative Commons License