## Four Unique Positive Factors

Math questions from mba.com and GMAT Prep software
j.abbey212
Course Students

Posts: 1
Joined: Thu May 24, 2012 4:12 am

### Four Unique Positive Factors

Can someone advise on the below question?

If p and q are positive integers such that pq has exactly 4 unique positive factors and p < q, what is the value of the integer p?

(1) The sum of p and q is an odd integer.
(2) The difference between p and q is 1.
RonPurewal
Students

Posts: 19747
Joined: Tue Aug 14, 2007 8:23 am

### Re: Four Unique Positive Factors

hi,
on this forum, it's not acceptable to just post a problem and say "please advise", or "i had no idea how to solve this".

1/
first of all, this is almost certainly not true.
you probably started the problem in some way, and then got stuck at some very specific point(s) along the way.

2/
in the unlikely event that this actually is true—i.e., if you actually looked at this problem and thought, "wow, i have NO idea how to do this at all"—then you're better off leaving the problem and returning to it later.
(remember, official problems are a precious resource.)

so...
what did you understand?
what didn't you understand?
where did you get stuck?
did you try any alternate approaches?
etc.

thanks.
RonPurewal
Students

Posts: 19747
Joined: Tue Aug 14, 2007 8:23 am

### Re: Four Unique Positive Factors

also -- this problem doesn't seem to come from the FREE GMAT Prep software (= the only source allowed in this folder of the forum).

please excuse the inconvenience, but, in order to discuss this problem here, we'll need a screen shot of the problem directly from the FREE GMAT Prep software.
thank you.