It is currently 26 Jun 2017, 12:37

### 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

# What is the greatest common factor of the positive integers

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Director
Affiliations: FRM Charter holder
Joined: 02 Dec 2006
Posts: 729
Schools: Stanford, Chicago Booth, Babson College
What is the greatest common factor of the positive integers [#permalink]

### Show Tags

14 Feb 2007, 06:06
00:00

Difficulty:

(N/A)

Question Stats:

100% (01:33) correct 0% (00:00) wrong based on 2 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

What is the greatest common factor of the positive integers j and k?
(1) k = j + 1
(2) jk is divisible by 5.
SVP
Joined: 01 May 2006
Posts: 1796

### Show Tags

14 Feb 2007, 07:11
(A) for me

From 1
k = j + 1... the greatest common factor is 1.

SUFF.

From 2
k*j = 5*i where i is an integer.

o If k=1 and j=5, then the greatest common factor is 1
o If k=2 and j=10, then the greatest common factor is 2

INSUFF.
SVP
Joined: 05 Jul 2006
Posts: 1747

### Show Tags

14 Feb 2007, 17:30
What is the greatest common factor of the positive integers j and k?
(1) k = j + 1
(2) jk is divisible by 5.

from one

2 successive intigers ( as far as i know any 2 successive intigers are said to be relatively prime

ie: the gcf =1

from two

insuff

A TOO
14 Feb 2007, 17:30
Display posts from previous: Sort by

# What is the greatest common factor of the positive integers

 post reply 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®.