We invite you to test your GMAT knowledge for a chance to win! Each week, we will post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:

The positive difference of the fourth powers of two consecutive positive integers must be divisible by…

Discuss this week’s problem with like-minded GMAT takers on our Facebook page.

The weekly winner, drawn from among all the correct submissions, will receive One Year of Access to our Challenge Problem Archive, AND the GMAT Navigator, AND Our Six Computer Adaptive Tests (\$92 value).

#### Tom Williams

Tom Williams is a Marketing Associate at Manhattan Prep. His background and interests are primarily within New Media and Online Marketing. As such, he spends approximately 18 hours a day in front of a computer. When heâ€™s not interacting with Manhattan Prep students on Facebook and Twitter, Tom can be found listening to records, rooting for the Mets and Jets, and reading history books.

### 9 responses to Challenge Problem Showdown – November 5, 2012

1. Thanks for the helpful information! I would never have discovered this on my own!

2. Good luck getting people behind this one.??Though you make some VERY fascinating points, youre going to have to do more than bring up a few things that may be different than what weve already heard.??What are trying to say here???What do you want us to think???It seems like you cant really get behind a unique thought.??Anyway, thats just my opinion.

3. I love Guild Cafe.. I was thinking of joining one of these days. Should I?

4. rzRYFzf Phentermine

5. Eva Angelina

6. eAavtmCb Valium

7. Very first time Ive v isited your blog?- superior discover! Thanks.

8. szPHSrm Valium

9. Thanks for posting about this. There?s scores of important tech data on the internet. A person?ve got a lot of which data right here on your website. I?m amazed ? I attempt to keep a few weblogs pretty on-going, but it?utes a struggle occasionally. You?ng carried out a great job with this particular 1. How do you get it done?