This group tasks allows you to search for arithmetic progressions in the prime numbers. How many of the challenges will you discover for yourself?

A weekly challenge concerning prime numbers.

Take any prime number greater than 3 , square it and subtract one. Working on the building blocks will help you to explain what is special about your results.

Make a line of green and a line of yellow rods so that the lines differ in length by one (a white rod)

An introduction to proof by contradiction, a powerful method of mathematical proof.

A game in which players take it in turns to choose a number. Can you block your opponent?

This black box reveals random values of some important, but unusual, mathematical functions. Can you deduce the purpose of the black box?