# Prime Numbers Activity

Make your own prime number chart!

Click on any number:

- its multiples get marked blue (definitely composite numbers).
- it is marked gold if it
**might be**a prime number,

Keep marking numbers, until **finally** you will have a list of only prime numbers and composite numbers

Oh, and **1 is neither prime nor composite**, so you can't mark it.

images/prime-chart.js

Question: if you could choose "1", what would happen?

Question: what if you don't mark the first part of the chart?

Question: do you have to mark the whole chart, or can you stop somewhere?