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

It is currently 19 Apr 2014, 22:01

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

N is a 3-digit positive integer, is N a prime number? 1) Its

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Senior Manager
Senior Manager
Joined: 08 Aug 2005
Posts: 257
Followers: 1

Kudos [?]: 2 [0], given: 0

GMAT Tests User
N is a 3-digit positive integer, is N a prime number? 1) Its [#permalink] New post 05 May 2006, 22:43
N is a 3-digit positive integer, is N a prime number?

1) Its tens'digit equal to hundreds' digit
2) Its units' digit is 3.
VP
VP
User avatar
Joined: 29 Apr 2003
Posts: 1410
Followers: 2

Kudos [?]: 13 [0], given: 0

GMAT Tests User
 [#permalink] New post 05 May 2006, 22:47
Answer is E!


From 1: 332, 331... or 221, 222!!

From 2: 333, 663 or 113!

Hence E!
Manager
Manager
Joined: 27 Mar 2006
Posts: 137
Followers: 1

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

GMAT Tests User
 [#permalink] New post 06 May 2006, 17:12
Agree with C :wink:
Director
Director
Joined: 26 Sep 2005
Posts: 587
Location: Munich,Germany
Followers: 1

Kudos [?]: 7 [0], given: 0

GMAT Tests User
 [#permalink] New post 19 Jun 2006, 17:24
stmt 1 - 332,551...insuff

stmt 2, 333,553,763 insuff

combining, insuff - E
VP
VP
User avatar
Joined: 15 Jun 2006
Posts: 1124
Schools: Chicago Booth
Followers: 4

Kudos [?]: 39 [0], given: 0

GMAT Tests User
 [#permalink] New post 20 Jun 2006, 03:49
1) XXY - not suff
2) XY3 - not suff
1+2) XX3 - includes 333, 663, 993 which are not prime numbers

therefore E
Manager
Manager
Joined: 09 Apr 2006
Posts: 176
Location: Somewhere in Wisconsin!
Followers: 1

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

GMAT Tests User
 [#permalink] New post 20 Jun 2006, 21:49
E is the desired choice. Combining I and II, 333 is a straight giveaway for N not being a prime.
_________________

Thanks,
Zooroopa

Manager
Manager
Joined: 14 Mar 2006
Posts: 215
Followers: 1

Kudos [?]: 2 [0], given: 0

GMAT Tests User
 [#permalink] New post 21 Jun 2006, 13:50
from 1) we can have 110 which is not prime
from 2) we can have 103 again not prime

combining both we can have 663 not prime
therefore E.
Senior Manager
Senior Manager
Joined: 07 Apr 2006
Posts: 499
Followers: 1

Kudos [?]: 7 [0], given: 0

GMAT Tests User
 [#permalink] New post 24 Jun 2006, 05:59
1) as stated before 110 is not prime

2) 333 is not prime

combined 663 is not prime

E looks like the choice
  [#permalink] 24 Jun 2006, 05:59
    Similar topics Author Replies Last post
Similar
Topics:
New posts n is a positive integer, 2^n -1 is a prime number? 1) n is a freetheking 7 15 Jul 2006, 07:44
New posts If n is an integer, is n +2 a prime number? (1) n is a prime prude_sb 9 20 Aug 2006, 20:18
New posts 1 N is a 3-digit positive integer that composed of 1, 2, and 3 arjtryarjtry 6 28 Jul 2008, 01:56
New posts If N is a 3-digit positive integer and when N is divided by arjtryarjtry 4 01 Aug 2008, 02:24
Popular new posts 24 Experts publish their posts in the topic N and M are each 3-digit integers. Each of the numbers 1, 2, nobelgirl777 13 07 Jul 2012, 20:28
Display posts from previous: Sort by

N is a 3-digit positive integer, is N a prime number? 1) Its

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

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®.