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- Video Course
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- General GMAT Strategies - 7 videos (all free)
- Data Sufficiency - 16 videos (all free)
- Arithmetic - 38 videos (some free)
- Powers and Roots - 36 videos (some free)
- Algebra and Equation Solving - 73 videos (some free)
- Word Problems - 48 videos (some free)
- Geometry - 42 videos (some free)
- Integer Properties - 38 videos (some free)
- Statistics - 20 videos (some free)
- Counting - 27 videos (some free)
- Probability - 23 videos (some free)
- Analytical Writing Assessment - 5 videos (all free)
- Reading Comprehension - 10 videos (all free)
- Critical Reasoning - 38 videos (some free)
- Sentence Correction - 70 videos (some free)
- Integrated Reasoning - 17 videos (some free)

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## Comment on

Divisor of 86420## Hi just trying to assess how

## This is a SUPER HARD question

This is a SUPER HARD question. It's definitely 750+

## Hi Brent, if we consider any

We get 72/(6^-2) = 72/(1\36) = (72)(36)

This makes 6^-2 a divisor of 72, in the same way for the above ques we can consider any -ve value for n?

## That's a great idea, but we

That's a great idea, but we can't say that 6^(-2) a divisor of 72.

Divisors must be INTEGERS, and 6^(-2) = 1/16 (which is not an integer)

Cheers,

Brent

## Good question

## I'm glad you like it :-)

I'm glad you like it :-)

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