It is currently 17 Nov 2017, 20:06

### 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

# If n is the product of the integers from1 to 20 inclusive,

Author Message
Manager
Joined: 10 Oct 2008
Posts: 56

Kudos [?]: 71 [0], given: 0

If n is the product of the integers from1 to 20 inclusive, [#permalink]

### Show Tags

17 Oct 2008, 08:09
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If n is the product of the integers from1 to 20 inclusive, what is the greatest integer k for which 2k is a factor of n?

A. 10
B. 12
C. 15
D. 18
E. 20

Kudos [?]: 71 [0], given: 0

Director
Joined: 01 Jan 2008
Posts: 618

Kudos [?]: 203 [0], given: 1

### Show Tags

17 Oct 2008, 08:47
Jcpenny wrote:
If n is the product of the integers from1 to 20 inclusive, what is the greatest integer k for which 2k is a factor of n?

A. 10
B. 12
C. 15
D. 18
E. 20

Make sure you write the question correctly next time. It's not 2k but 2^k.

int(20/2)+int(20/4)+int(20/8)+int(20/16)=10+5+2+1=18 -> D

Kudos [?]: 203 [0], given: 1

Manager
Joined: 15 Apr 2008
Posts: 164

Kudos [?]: 12 [0], given: 1

### Show Tags

17 Oct 2008, 08:48
what is the OA
I am getting E as answer, as 2*20=40 will be a factor for 20!

or i might be missing some important point here

Kudos [?]: 12 [0], given: 1

Manager
Joined: 15 Apr 2008
Posts: 164

Kudos [?]: 12 [0], given: 1

### Show Tags

17 Oct 2008, 08:56
yes, now it makes sense
so it actually is 2^k

Kudos [?]: 12 [0], given: 1

Re: product   [#permalink] 17 Oct 2008, 08:56
Display posts from previous: Sort by

# If n is the product of the integers from1 to 20 inclusive,

Moderator: chetan2u

 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®.