## Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

### Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

# Why did Amit use the remainder operator?

Amit used the remainder operator % to find out if a number was divisible by 3

He wrote

i % 3 == 0 I don't really understand why he used %

If a number was divisible by 3 (exactly divisible with no remainder) then num % 3 would always return 0.

Consider the following:

```3 % 3 = 0
4 % 3 = 1
5 % 3 = 2
6 % 3 = 0
```

:)

I thought the same thing. I kept trying to use / and actually divide.