Find all School-related info fast with the new School-Specific MBA Forum

It is currently 02 Oct 2014, 00:39

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If n is an odd integer greater than 1, is n prime? (1) n is

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
avatar
Joined: 05 Sep 2005
Posts: 3
Followers: 0

Kudos [?]: 0 [0], given: 0

If n is an odd integer greater than 1, is n prime? (1) n is [#permalink] New post 11 Dec 2005, 10:37
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 3 sessions
If n is an odd integer greater than 1, is n prime?

(1) n is a factor of 56
(2) 14 is a factor of 2n.
VP
VP
avatar
Joined: 22 Aug 2005
Posts: 1128
Location: CA
Followers: 1

Kudos [?]: 29 [0], given: 0

 [#permalink] New post 11 Dec 2005, 11:01
A.

S1:
56 = 2^3 * 7

only odd factor : 7


S2:
n = 7: yes
n = 21:no
_________________

Whether you think you can or think you can't. You're right! - Henry Ford (1863 - 1947)

Intern
Intern
avatar
Joined: 11 Sep 2005
Posts: 19
Location: Framingham, MA, USA
Followers: 0

Kudos [?]: 1 [0], given: 0

 [#permalink] New post 11 Dec 2005, 11:07
Statement 1:
56 = 2 * 2 * 2 * 7 * 1
Since n is odd and greater than 1, the only choice is 7.
7 is prime, hence SUFF.

Statement 2:
n = 7
2n = 14

But if n = 14
2n = 28.
14 is a factor of 28. But 14 is not odd.
Thus INSUFF

Answer = A
VP
VP
avatar
Joined: 06 Jun 2004
Posts: 1061
Location: CA
Followers: 2

Kudos [?]: 26 [0], given: 0

 [#permalink] New post 11 Dec 2005, 16:34
duttsit wrote:
A.

S1:
56 = 2^3 * 7

only odd factor : 7


S2:
n = 7: yes
n = 21:no


Agree with duttsit. Should be A
VP
VP
User avatar
Joined: 20 Sep 2005
Posts: 1023
Followers: 3

Kudos [?]: 24 [0], given: 0

 [#permalink] New post 13 Dec 2005, 14:04
A. Same reasoning as explained by others above.
  [#permalink] 13 Dec 2005, 14:04
    Similar topics Author Replies Last post
Similar
Topics:
7 Experts publish their posts in the topic The "prime sum" of an integer n greater than 1 is the sum of Bunuel 5 05 Feb 2014, 01:26
1 Experts publish their posts in the topic An integer n that is greater than 1 is said to be "prime-sat fozzzy 1 17 Sep 2013, 00:16
5 If n is an odd integer greater than 1, is n prime? 1) n is a amitdgr 9 08 Oct 2008, 22:46
If n is an odd integer greater than 1, is n prime? (1) n is young_gun 5 29 Nov 2007, 11:43
If n is a positive integer, is (n+1)! - (n-1)! greater than sparky 12 12 Jun 2005, 17:21
Display posts from previous: Sort by

If n is an odd integer greater than 1, is n prime? (1) n is

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.