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If p is an integer greater than 1, is p a prime number?

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Ryerson (Ted Rogers) Thread Master
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If p is an integer greater than 1, is p a prime number? [#permalink]

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If p is an integer greater than 1, is p a prime number?

(1) \(p\) is a factor of 13
(2) \(p\) is a factor of 78
[Reveal] Spoiler: OA

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Re: If p is an integer greater than 1, is p a prime number? [#permalink]

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New post 21 Dec 2015, 18:56
RSOHAL wrote:
If p is an integer greater than 1, is p a prime number?

(1) \(p\) is a factor of 13
(2) \(p\) is a factor of 78


The question asks whether p is a prime number.

Per statement 1, p is a factor of 13 and as such there are only 2 possible values of p = 1 or 13. But as it is given than p>1, p=13 is the only allowed value. Sufficient

Per statement 2, p is a factor of 78, thus p = 2 or 6 or 13 and you end up getting primes = 2 or 3 but also non primes = 6 or 78. Hence not sufficient.

A is the correct answer.
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Re: If p is an integer greater than 1, is p a prime number? [#permalink]

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New post 10 Sep 2017, 22:04
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Re: If p is an integer greater than 1, is p a prime number?   [#permalink] 10 Sep 2017, 22:04
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