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What is the value of the positive integer N?

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What is the value of the positive integer N?  [#permalink]

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New post 06 Jan 2019, 08:34
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Question Stats:

65% (00:44) correct 35% (00:59) wrong based on 54 sessions

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What is the value of the positive integer N?

(1) N^2 has 3 positive factors

(2) N is a multiple of 3
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Re: What is the value of the positive integer N?  [#permalink]

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New post 06 Jan 2019, 08:53
2
1)N2 has 3 factors
N = 2,3,5,7,11,13..... N is prime

N=more than 1 value = Not sufficient.

2) N is a multiple of 3

N = 3,6,9....

N=more than 1 value = Not sufficient.

3)Both combined

Only value possible from the above 2 sets combined = 3

N = 3.

Hence C)
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Re: What is the value of the positive integer N?  [#permalink]

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New post 08 Jan 2019, 11:26
akurathi12 wrote:
What is the value of the positive integer N?

(1) N^2 has 3 positive factors

(2) N is a multiple of 3


Statement 1
\(N^2\) has 3 positive factors

Here \(N^2\) can be 4, 9 , 25
which will give 2 values for N=> 2 or 3
Insufficient

Statement 2
N is a multiple of 3
N = 3,6,9

Combining will give common value as 3, because 6 will have 4 factors

Answer C
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Re: What is the value of the positive integer N? &nbs [#permalink] 08 Jan 2019, 11:26
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