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

It is currently 23 Feb 2019, 02:57

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.

Close

Request Expert Reply

Confirm Cancel
Events & Promotions in February
PrevNext
SuMoTuWeThFrSa
272829303112
3456789
10111213141516
17181920212223
242526272812
Open Detailed Calendar
  • Free GMAT RC Webinar

     February 23, 2019

     February 23, 2019

     07:00 AM PST

     09:00 AM PST

    Learn reading strategies that can help even non-voracious reader to master GMAT RC. Saturday, February 23rd at 7 AM PT
  • FREE Quant Workshop by e-GMAT!

     February 24, 2019

     February 24, 2019

     07:00 AM PST

     09:00 AM PST

    Get personalized insights on how to achieve your Target Quant Score.

The Greatest Common Factor (GCF) of 48 and 72 is

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 53066
The Greatest Common Factor (GCF) of 48 and 72 is  [#permalink]

Show Tags

New post 23 Oct 2018, 20:31
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

90% (00:49) correct 10% (00:41) wrong based on 42 sessions

HideShow timer Statistics

CEO
CEO
User avatar
P
Status: GMATINSIGHT Tutor
Joined: 08 Jul 2010
Posts: 2799
Location: India
GMAT: INSIGHT
Schools: Darden '21
WE: Education (Education)
Reviews Badge
Re: The Greatest Common Factor (GCF) of 48 and 72 is  [#permalink]

Show Tags

New post 23 Oct 2018, 20:37
Bunuel wrote:
The Greatest Common Factor (GCF) of 48 and 72 is

A. 4
B. 6
C. 12
D. 24
E. 48


48 = 24*2
72 = 24*3

there is no GCD of 2 and 3 except 1 therefore GCF of 48 and 72 = 24

Answer: Option D
_________________

Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

ACCESS FREE GMAT TESTS HERE:22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION

Manager
Manager
User avatar
G
Joined: 13 Jan 2018
Posts: 229
Location: India
Concentration: Operations, General Management
GMAT 1: 580 Q47 V23
GMAT 2: 640 Q49 V27
GPA: 4
WE: Consulting (Consulting)
Reviews Badge
Re: The Greatest Common Factor (GCF) of 48 and 72 is  [#permalink]

Show Tags

New post 23 Oct 2018, 20:50
48 = \(3\) * \(2^4\)
72 = \(3^2\) * \(2^3\)

From both the numbers \(3\) * \(2^3\) is common for both.

So GCD is \(3\) * \(2^3\) = \(24\)
_________________

____________________________
Regards,

Chaitanya


+1 Kudos

if you like my explanation!!!

Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4391
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member CAT Tests
Re: The Greatest Common Factor (GCF) of 48 and 72 is  [#permalink]

Show Tags

New post 23 Oct 2018, 22:56
Bunuel wrote:
The Greatest Common Factor (GCF) of 48 and 72 is

A. 4
B. 6
C. 12
D. 24
E. 48


24*2 = 48
24*3 = 72

Hence, Answer must be (D) 24
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

GMAT Club Bot
Re: The Greatest Common Factor (GCF) of 48 and 72 is   [#permalink] 23 Oct 2018, 22:56
Display posts from previous: Sort by

The Greatest Common Factor (GCF) of 48 and 72 is

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

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

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.