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

 It is currently 04 May 2015, 22:53

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# How many factors does 36^2 have? 2 8 24 25 26 Is there an

 Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:
Senior Manager
Joined: 05 Mar 2006
Posts: 348
Followers: 1

Kudos [?]: 8 [0], given: 0

How many factors does 36^2 have? 2 8 24 25 26 Is there an [#permalink]  16 Aug 2006, 10:57
How many factors does 36^2 have?

2
8
24
25
26

Is there an easier way to do this? Listing it out is way too lengthy?
Manager
Joined: 05 Jul 2006
Posts: 198
Followers: 1

Kudos [?]: 20 [0], given: 0

[#permalink]  16 Aug 2006, 12:50
I don't know if my answer is correct but this is how I arrived at the asnwer.

36^2= 6^2*6^2
= 36*36
=6*6 * 6*6
=3*2*3*2 * 3*2*3*2

The total is 8.
Director
Joined: 06 May 2006
Posts: 781
Followers: 3

Kudos [?]: 16 [0], given: 0

[#permalink]  16 Aug 2006, 13:16
Dude, theres a formula to do that for us!

If you factor a number into its prime factors, then the total number of factors can be calculated by adding one to all the exponents and multiplying these results.

In this case, 36^2 = 2^4 x 3^4. Now you add 1 to each of the exponents and multiply them and you get (5 x 5) = 25...
CEO
Joined: 20 Nov 2005
Posts: 2913
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 18

Kudos [?]: 121 [0], given: 0

[#permalink]  16 Aug 2006, 14:16
Dude, theres a formula to do that for us!

If you factor a number into its prime factors, then the total number of factors can be calculated by adding one to all the exponents and multiplying these results.

In this case, 36^2 = 2^4 x 3^4. Now you add 1 to each of the exponents and multiply them and you get (5 x 5) = 25...

You are so right...
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

Senior Manager
Joined: 05 Mar 2006
Posts: 348
Followers: 1

Kudos [?]: 8 [0], given: 0

[#permalink]  16 Aug 2006, 14:37
Paddy, that is brilliant. Thanks for the insight.
[#permalink] 16 Aug 2006, 14:37
Similar topics Replies Last post
Similar
Topics:
How many factors does 36^2 have? 2 8 24 25 26 13 02 Sep 2008, 12:14
How many factors does 36^2 have? 2 8 24 25 26 8 14 Jun 2008, 16:06
How many factors does 36*36 have? 2 8 24 25 26 3 16 Jun 2007, 21:02
How many factors does 36^2 have? a.2 b.8 c.24 d.25 e.26 I'm 6 01 Nov 2006, 01:42
How many factors does 36^2 have 12 18 Dec 2005, 02:06
Display posts from previous: Sort by

# How many factors does 36^2 have? 2 8 24 25 26 Is there an

 Question banks Downloads My Bookmarks Reviews Important topics

 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®.