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m19#17

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Intern
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Joined: 23 Jun 2010
Posts: 9
m19#17 [#permalink]

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New post 15 Oct 2011, 00:59
Is \(p^2\) a prime number?

1. \(p > 1\)
2. \(\sqrt{p}\) is an integer



[Reveal] Spoiler:
OA: B

I got stumped by thinking 1 is prime. Shame.
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Re: m19#17 [#permalink]

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New post 16 Oct 2011, 04:50
Ans:B

If Sqrt of P is integer then P^2 can't be prime.
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Last edited by g106 on 16 Oct 2011, 11:51, edited 1 time in total.
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Re: m19#17 [#permalink]

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New post 16 Oct 2011, 11:41
Answer should be B -- as sqrt of P is an integer then P squre can not be prime number.
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Re: m19#17   [#permalink] 16 Oct 2011, 11:41
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