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Is X a prime number? (1) X is a factor of 144. (2) X > 2 and X is a

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Is X a prime number? (1) X is a factor of 144. (2) X > 2 and X is a  [#permalink]

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New post 08 Jan 2019, 22:20
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  25% (medium)

Question Stats:

86% (00:48) correct 14% (00:56) wrong based on 27 sessions

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Is X a prime number?

(1) X is a factor of 144.

(2) X > 2 and X is a multiple of 2.
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Joined: 23 Feb 2018
Posts: 11
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Re: Is X a prime number? (1) X is a factor of 144. (2) X > 2 and X is a  [#permalink]

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New post 08 Jan 2019, 22:32
B

I) 2 and 3 are two prime factors of 144 so one can not decide.
ii) Any multiple of 2>2 can not be a prime

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Re: Is X a prime number? (1) X is a factor of 144. (2) X > 2 and X is a  [#permalink]

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New post 08 Jan 2019, 22:43
amanvermagmat wrote:
Is X a prime number?

(1) X is a factor of 144.

(2) X > 2 and X is a multiple of 2.


Statement 1
X can have in total 15 values, such as 2,4,12,18
It is not sufficient, since it gives two values as 2 or 18

Statement 2
X > 2 and X is a multiple of 2
Values satisfying above will be 4,6,8,10
Multiple of 2, greater than 2, will never be a prime number.

IMO Answer is B
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Re: Is X a prime number? (1) X is a factor of 144. (2) X > 2 and X is a   [#permalink] 08 Jan 2019, 22:43
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