# Resources tagged with: Prime numbers

### There are 7 results

Broad Topics >

Numbers and the Number System > Prime numbers

##### Age 16 to 18 Challenge Level:

How many divisors does factorial n (n!) have?

##### Age 14 to 16 Challenge Level:

Can you make lines of Cuisenaire rods that differ by 1?

##### Age 14 to 16 Challenge Level:

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.

##### Age 7 to 16 Challenge Level:

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

##### Age 14 to 18

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

##### Age 16 to 18 Challenge Level:

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

##### Age 16 to 18 Challenge Level:

A short challenge concerning prime numbers.