## 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.

# modulus

Hello, I'm trying to find out how modulus works, I haven't been able to find a simple answer to my question. How does it operate, what does it do to extract 10 out 70 % 30 as an example? Would be really glad if someone could help me out with this one with basic English. Thank you.

Among other things, this is commonly used to check if a number is even or odd. Any number that is evenly divisible by two is said to be even. Thus, you can check for `num % 2 == 0`. If that is true, then the number is even. Otherwise, it's odd.