Our goal is to help people of all ages not just love math, but also love doing it right.

$Prime Time is free!$

Download Windows Installer	Download Portable Game (No Install Needed)
Or Play Online Now!

$View the Prime Time source code on GitHub$

See How It's Made

Prime Time is open source and you can explore the code on Github.

Watch videos of students playing and loving Prime Time before school even starts! And notice how great Prime Time works on an interactive whiteboard.

Learn the basics of Prime Time or master the key to high scores. These tutorials will teach you everything you need to know about Prime Time.

$Mobile App$

$Classic Prime Time play mode$

$Fraction mode$

$Addition mode$

$Ceiling mode$