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

It is currently 29 Jul 2015, 12:37
GMAT Club Tests

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

A question regarding factors of perfect square

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
avatar
Joined: 04 Aug 2009
Posts: 10
Followers: 0

Kudos [?]: 3 [0], given: 1

A question regarding factors of perfect square [#permalink] New post 29 Aug 2010, 10:23
If we are given that a perfect square say x^2 is divisible by n (a non perfect square integer) then it is always true that x^2 = k* n^2?

Is it always true?

Just wanted comments on this?
Manager
Manager
avatar
Joined: 25 Jun 2010
Posts: 91
Followers: 1

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

GMAT ToolKit User
Re: A question regarding factors of perfect square [#permalink] New post 29 Aug 2010, 10:59
What if x=9 and n= 27 ?
Then k will be fractional.

Posted from my mobile device Image
Expert Post
GMAT Tutor
avatar
Joined: 24 Jun 2008
Posts: 1174
Followers: 311

Kudos [?]: 979 [0], given: 4

Re: A question regarding factors of perfect square [#permalink] New post 29 Aug 2010, 13:53
Expert's post
aliassad wrote:
If we are given that a perfect square say x^2 is divisible by n (a non perfect square integer) then it is always true that x^2 = k* n^2?

Is it always true?

Just wanted comments on this?


No, that is not always true, at least if you mean for k to be an integer. If you take x^2 = 16, say, then x^2 is divisible by 8, but not by 8^2.

It *is* however true when n is prime. That is, if x is an integer, and x^2 is divisible by a prime p, then x^2 is certainly divisible by p^2.
_________________

GMAT Tutor in Toronto

If you are looking for online GMAT math tutoring, or if you are interested in buying my advanced Quant books and problem sets, please contact me at ianstewartgmat at gmail.com

Re: A question regarding factors of perfect square   [#permalink] 29 Aug 2010, 13:53
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic Perfect square Motivatedtowin 5 03 Dec 2014, 00:30
1 Experts publish their posts in the topic Question Regarding Multiples, factors and primes! SonyGmat 6 09 Nov 2011, 15:11
Perfect Square/Cube Zarthul 1 31 May 2011, 01:46
1 Perfect Square hussi9 13 21 May 2011, 04:45
Perfect square.... monirjewel 1 29 Oct 2010, 06:07
Display posts from previous: Sort by

A question regarding factors of perfect square

  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®.