GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 24 May 2019, 12:26

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# If n is a positive integer, is n equal to 6?

Author Message
TAGS:

### Hide Tags

Retired Moderator
Joined: 22 Jun 2014
Posts: 1111
Location: India
Concentration: General Management, Technology
GMAT 1: 540 Q45 V20
GPA: 2.49
WE: Information Technology (Computer Software)
If n is a positive integer, is n equal to 6?  [#permalink]

### Show Tags

15 Jan 2017, 07:54
00:00

Difficulty:

35% (medium)

Question Stats:

75% (01:08) correct 25% (01:01) wrong based on 50 sessions

### HideShow timer Statistics

If n is a positive integer, is n equal to 6?

(1) $$n^2$$ + 1 is a prime number.

(2) n > 2

_________________
Math Expert
Joined: 02 Sep 2009
Posts: 55271
Re: If n is a positive integer, is n equal to 6?  [#permalink]

### Show Tags

15 Jan 2017, 08:43
If n is a positive integer, is n equal to 6?

(1) $$n^2$$ + 1 is a prime number --> n can be 6 because 6^2 + 1 = 37 = prime but n can also be 4, because 4^2 + 1 = 17 = prime. Not sufficient.

(2) n > 2. Not sufficient.

(1)+(2) We can use the example from (1) again. Not sufficient.

_________________
Current Student
Joined: 02 Jul 2017
Posts: 294
Concentration: Entrepreneurship, Technology
GMAT 1: 730 Q50 V38
Re: If n is a positive integer, is n equal to 6?  [#permalink]

### Show Tags

07 Sep 2017, 01:24
n is a positive integer, n= 6?

(1) n^2 + 1 is a prime number.
n=1 => 2 prime
n=2 =>5 prime
n=4 => 17 prime
n=6 => 37 prime
Not sufficient

(2) n > 2
Not sufficient .. n can be anything >2

1+2
if n> 2.. by 1 we can clearly see that we know 2 values of n=> 4 or 6
So not sufficient

Re: If n is a positive integer, is n equal to 6?   [#permalink] 07 Sep 2017, 01:24
Display posts from previous: Sort by