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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

Not divisible by 6## (Alternatively) In this case

## Fantastic approach!

Fantastic approach!

## Brilliant brother ..

## I found the fastest approach

## That's definitely a valid

That's definitely a valid approach. In fact, it's one of the approaches we use in the video.

## In fact, if we use your

## Good point!

Good point!

## Hi Brent,

I have a question.

Why is 3 not divisible by 6.

When 3 divide by 6, the answer is 0.5, which gives you no remainder as well.

## Great question!

Great question!

The key here is that, in order for x to be divisible by y, it must be the case that x ÷ y = some integer.

3 ÷ 6 = 0.5, and 0.5 isn't an integer.

Here's how the Official Guide puts it:

If x and y are integers and x ≠ 0, then x is a divisor (factor) of y provided that y = xn for some integer n.

For example, 3 is a divisor of 15, because we can write 15 = (3)(5), where 5 is an integer.

Does that help?

Cheers,

Brent

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