• Question: Why is 2 the only even prime number?

    Asked by 322eura33 to Alex, Ali, Kerry on 20 Nov 2014.
    • Photo: Alex Pool

      Alex Pool answered on 20 Nov 2014:

      So all even numbers are divisible by 2 (that’s the main definition of an even number). As 2 is so small, it’s only divisible by itself and 1, so is prime. 🙂

    • Photo: Alison Thomson

      Alison Thomson answered on 20 Nov 2014:

      What Alex said :p Every even number after 2 is divisible by 2!

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