# GMAT Question of the Day – Problem Solving – Exponents

A.

B.

C.

D.

E.

## GMAT Question of the Day Solution (scroll down if you only want the correct answer)

This question of the day presents an exponents work-out. First rule of GMAT: Know your fundamentals! Do you really know your exponent rules? The GMAT will push you to the limits.

Here’s a little trick: If you get confused on a question with gigantic numbers, use smaller numbers to figure out the rules.

In this case notice that we are raising to a power. That means that all of the exponents need to be multiplied. So 3*1000*1000*2 = 6,000,000.

The answer is 10^6,000,000.

[spoiler]B.[/spoiler]

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## Additional Challenging GMAT Exponents Examples

Here’s a GMAT exponents puzzle from the GMAT Official Guide that almost always comes up in tutoring sessions:

If n is a positive integer and n^2 is divisible by 72, then the largest positive integer that must divide n is

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