NEW HERE? LEARN MORE
closeclose
Last visit was: 26 Apr 2024, 16:32 It is currently 26 Apr 2024, 16:32
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

Prime Factorisation and Combinatorics

User avatar
n2739178
Manager
Manager
Joined: 12 May 2010
Posts: 233
Own Kudos [?]: 112 [0]
Given Kudos: 12
Location: United Kingdom
Concentration: Entrepreneurship, Technology
Schools: LBS '14 Oxford '14 Judge Sloan '14 INSEAD '14
GMAT Date: 10-22-2011
GPA: 3
WE:Information Technology (Internet and New Media)
Send PM
Prime Factorisation and Combinatorics [#permalink] New post   03 Oct 2010, 07:50
Hi all,

From MGMAT: Factors of a number can be found by building all the possible products of the prime factors...

It seems to me that this lends itself to using combinatorics to calculate the NUMBER of possible factors of a number… You would find the prime factors then find all the different combinations of the prime factors? Can someone please confirm this is correct?

Thanks



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
User avatar
shrouded1
Retired Moderator
Joined: 02 Sep 2010
Posts: 615
Own Kudos [?]: 2931 [0]
Given Kudos: 25
Location: London
 Q51  V41
Send PM
GMAT ToolKit User Reviews Badge
Re: Prime Factorisation and Combinatorics [#permalink] New post   03 Oct 2010, 11:40
n2739178 wrote:
Hi all,

From MGMAT: Factors of a number can be found by building all the possible products of the prime factors...

It seems to me that this lends itself to using combinatorics to calculate the NUMBER of possible factors of a number… You would find the prime factors then find all the different combinations of the prime factors? Can someone please confirm this is correct?

Thanks


Yes, you are correct

I have explained here how you may do this, and derived the formula for it in general using combinatorics.
User avatar
n2739178
Manager
Manager
Joined: 12 May 2010
Posts: 233
Own Kudos [?]: 112 [0]
Given Kudos: 12
Location: United Kingdom
Concentration: Entrepreneurship, Technology
Schools: LBS '14 Oxford '14 Judge Sloan '14 INSEAD '14
GMAT Date: 10-22-2011
GPA: 3
WE:Information Technology (Internet and New Media)
Send PM
Re: Prime Factorisation and Combinatorics [#permalink] New post   03 Oct 2010, 11:55
Fantastic - thanks heaps!

I see you live in London - I do as well. Are you attending LBS or have attended it by any chance?

Thanks.
User avatar
shrouded1
Retired Moderator
Joined: 02 Sep 2010
Posts: 615
Own Kudos [?]: 2931 [0]
Given Kudos: 25
Location: London
 Q51  V41
Send PM
GMAT ToolKit User Reviews Badge
Re: Prime Factorisation and Combinatorics [#permalink] New post   03 Oct 2010, 11:58
fellow Londoner !
i work here ... i have flirted with the idea of going to school this year, but don't think I am applying yet
User avatar
n2739178
Manager
Manager
Joined: 12 May 2010
Posts: 233
Own Kudos [?]: 112 [0]
Given Kudos: 12
Location: United Kingdom
Concentration: Entrepreneurship, Technology
Schools: LBS '14 Oxford '14 Judge Sloan '14 INSEAD '14
GMAT Date: 10-22-2011
GPA: 3
WE:Information Technology (Internet and New Media)
Send PM
Re: Prime Factorisation and Combinatorics [#permalink] New post   06 Oct 2010, 15:14
shrouded1: with a GMAT of 760, you'd be straight into LBS surely?!

Still have to take my GMAT... completely lost on what strategy i should take for studying.
User avatar
shrouded1
Retired Moderator
Joined: 02 Sep 2010
Posts: 615
Own Kudos [?]: 2931 [0]
Given Kudos: 25
Location: London
 Q51  V41
Send PM
GMAT ToolKit User Reviews Badge
Re: Prime Factorisation and Combinatorics [#permalink] New post   06 Oct 2010, 15:19
I have bigger demons to slay

I already have a job that most MBAs look to get post degree ... This summer if it wasnt for some unforseen plans, I was supposed to be one of the intern mentors (which included MBAs, my team had someone from INSEAD I think) !

So for me the task really is to have a new goal in mind if I want to do an MBA ... when I want to leave finance I'll probably go for the MBA, within this field, the degree is not a value add for me. Plus the opportunity cost of lost income is very high as well.
User avatar
n2739178
Manager
Manager
Joined: 12 May 2010
Posts: 233
Own Kudos [?]: 112 [0]
Given Kudos: 12
Location: United Kingdom
Concentration: Entrepreneurship, Technology
Schools: LBS '14 Oxford '14 Judge Sloan '14 INSEAD '14
GMAT Date: 10-22-2011
GPA: 3
WE:Information Technology (Internet and New Media)
Send PM
Re: Prime Factorisation and Combinatorics [#permalink] New post   25 Oct 2010, 12:40
Fair enough then - if you're already in finance etc. and slaying the £££'s then maybe no point doing an MBA!

best of luck



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
GMAT Club Bot
gmatclubot
Re: Prime Factorisation and Combinatorics [#permalink]
25 Oct 2010, 12:40
Moderator:
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions