does all two digit prime numbers are odd ? : PS Archive
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# does all two digit prime numbers are odd ?

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does all two digit prime numbers are odd ? [#permalink]

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23 Oct 2009, 23:16
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does all two digit prime numbers are odd ?

yea..let me count few 11,13,19,23,.....

these seems odd ...but I am not sure whether ALL two digits primes are odd .

Can anybody explain ?
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Re: does all two digit prime numbers are odd ? [#permalink]

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24 Oct 2009, 02:41
2 is the only even prime number!
every other prime number is odd.
just think about it, every even number, no matter how much digits, is divisible by 2!
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Re: does all two digit prime numbers are odd ? [#permalink]

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24 Oct 2009, 08:22
phoenixgmat wrote:
2 is the only even prime number!
every other prime number is odd.
just think about it, every even number, no matter how much digits, is divisible by 2!

Thanks ...This explains a lot.
Re: does all two digit prime numbers are odd ?   [#permalink] 24 Oct 2009, 08:22
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