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# Is positive integer x prime?

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Math Expert
Joined: 02 Sep 2009
Posts: 55274
Is positive integer x prime?  [#permalink]

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14 Aug 2017, 02:17
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Difficulty:

35% (medium)

Question Stats:

68% (00:36) correct 32% (00:38) wrong based on 60 sessions

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Is positive integer x prime?

(1) x can be expressed as the product of two integers, each of which is greater than 1.
(2) 13 < x < 17

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Intern
Joined: 05 Jun 2017
Posts: 1
Re: Is positive integer x prime?  [#permalink]

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14 Aug 2017, 02:20
D?

using A, it can not be a prime number as it is a product of two numbers.
using b, there is no prime number among 14,15 and 16

combining two --> no solution
Intern
Joined: 18 Mar 2013
Posts: 1
Location: India
GMAT 1: 540 Q42 V22
Re: Is positive integer x prime?  [#permalink]

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14 Aug 2017, 02:44
D
1. Prime numbers have factors only 1 & number itself. If it can be expressed as product of two numbers which are greater than 1 then its not prime number. Sufficient

2. 13< 14,15,16< 17 answer is No. Sufficient

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Intern
Joined: 13 Jul 2015
Posts: 19
Re: Is positive integer x prime?  [#permalink]

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14 Aug 2017, 03:42
Ans : D (Each statement alone is sufficient)

a. Sufficient - The no is not a prime as it can be expressed as product of two numbers greater than 1
b. Sufficient - There is no prime no between 13 and 17 .
Re: Is positive integer x prime?   [#permalink] 14 Aug 2017, 03:42
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