Questions about the world of GMAT Math from other sources and general math related questions.
Levent-g
Forum Guests
 
Posts: 52
Joined: Sun Jun 17, 2012 12:37 am
 

Negative Integers as Multiples or Factors

by Levent-g Thu Oct 24, 2013 5:15 pm

Hi,

can a negative integer be a multiple or a factor of another integer.

For example:
1) Is -8 a multiple of 4?
2) Is -4 or factor of 8?

Thanks

Levent
jnelson0612
ManhattanGMAT Staff
 
Posts: 2664
Joined: Fri Feb 05, 2010 10:57 am
 

Re: Negative Integers as Multiples or Factors

by jnelson0612 Thu Oct 24, 2013 5:49 pm

Levent-g Wrote:Hi,

can a negative integer be a multiple or a factor of another integer.

For example:
1) Is -8 a multiple of 4?
2) Is -4 or factor of 8?

Thanks

Levent


*Technically* a negative integer could be the multiple of another integer. -8 is in fact a multiple of 4. However, for GMAT purposes, I have never seen an official question that used negative multiples. The GMAT usually covers this base by stating "the first five positive multiples of 4" . . . etc.

As far as factors, only worry about the positive factors of a number, unless the number itself is negative. However, I can't remember seeing a question like that.

The takeaway: you almost certainly do not need to worry about all of this. :-)
Jamie Nelson
ManhattanGMAT Instructor
Levent-g
Forum Guests
 
Posts: 52
Joined: Sun Jun 17, 2012 12:37 am
 

Re: Negative Integers as Multiples or Factors

by Levent-g Wed Nov 06, 2013 3:38 pm

Thanks Jamie :-)
RonPurewal
Students
 
Posts: 19744
Joined: Tue Aug 14, 2007 8:23 am
 

Re: Negative Integers as Multiples or Factors

by RonPurewal Thu Nov 07, 2013 7:14 am

.