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

 It is currently 30 Mar 2015, 09:31

### 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

# Which of the following is the lowest positive integer that

Author Message
TAGS:
Intern
Joined: 08 Jan 2007
Posts: 42
Followers: 1

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

Which of the following is the lowest positive integer that [#permalink]  13 Feb 2007, 10:10
Which of the following is the lowest positive integer that is divisible by 2, 3, 4, 5, 6, 7, 8 and 9?

A)15120
B)3024
C)2520
D)1890
E)1080

Manager
Joined: 12 Feb 2007
Posts: 167
Followers: 1

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

As goofy as the page looks, it probably best to take a gander at these rules
I cant post the link for some dumb reason but take a look here

kidzworldDOTcomSLASHarticleSLASH4979-math-help-division-tips-and-tricks

Last edited by Tuneman on 13 Feb 2007, 10:57, edited 2 times in total.
Senior Manager
Joined: 23 Jun 2006
Posts: 387
Followers: 1

Kudos [?]: 310 [0], given: 0

1080 is not divisible by 7....
1890 not divisible by 8
Senior Manager
Joined: 04 Jan 2006
Posts: 280
Followers: 1

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

Find Least Common Factor of the given number.

LCM(2, 3, 4, 5, 6, 7, 8, 9) = 2 x 2 x 2 x 3 x 3 x 5 x 7 = 2520
SVP
Joined: 05 Jul 2006
Posts: 1521
Followers: 5

Kudos [?]: 107 [0], given: 39

Re: Lowest Possible Integer [#permalink]  13 Feb 2007, 11:30
[quote="cucrose"]Which of the following is the lowest positive integer that is divisible by 2, 3, 4, 5, 6, 7, 8 and 9?

A)15120
B)3024
C)2520
D)1890
E)1080

1) b is not devisable by 5 ..............out ( it has to end up in 5 or 0)
2)d is not devisble by 4..........out ( check last 2 digits of any number /4)
3) e and is not devisable by 7 ......out

those u can spot at no time during the test

now we end up with c and a

Intern
Joined: 08 Jan 2007
Posts: 42
Followers: 1

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

Devilmirror, can you please explain how you obtained these values? Thanks a lot.

devilmirror wrote:
Find Least Common Factor of the given number.

LCM(2, 3, 4, 5, 6, 7, 8, 9) = 2 x 2 x 2 x 3 x 3 x 5 x 7 = 2520
Senior Manager
Joined: 04 Jan 2006
Posts: 280
Followers: 1

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

cucrose wrote:
Devilmirror, can you please explain how you obtained these values? Thanks a lot.

devilmirror wrote:
Find Least Common Factor of the given number.

LCM(2, 3, 4, 5, 6, 7, 8, 9) = 2 x 2 x 2 x 3 x 3 x 5 x 7 = 2520

LCM(2, 3, 4, 5, 6, 7, 8, 9) = 2 x 2 x 2 x 3 x 3 x 5 x 7 = 2520

This is the most straight forward method to find LCM.

2 = 2
4 = 2 x 2
5 = _________________x 5
6 = 2 x ______x 3
7 = _____________________x 7
8 = 2 x 2 x 2
9 = __________3 x 3

You reduce each repeated commond factor to be 1 number.

LCM = 2 x 2 x 2 x 3 x 3 x 5 x 7
Intern
Joined: 08 Jan 2007
Posts: 42
Followers: 1

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

now it makes sense, thank you
Similar topics Replies Last post
Similar
Topics:
1 Which of the following is the lowest positive integer that 7 10 Jan 2013, 08:38
Which of the following is the lowest positive integer that 2 16 Feb 2008, 09:32
1 Which of the following is the lowest positive integer that 5 05 Feb 2008, 14:05
Which of the following is the lowest positive integer that 1 03 Nov 2007, 04:37
Which of the following is the lowest positive integer that 6 04 Jul 2006, 07:51
Display posts from previous: Sort by