Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions
Find out more Download brochure

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!

Prime and Powers Investigation

'Each of us has a unique DNA structure in every cell of our body. Prime Numbers are the DNA of the number system. Discover why, and solve the murder mystery . . . ' Why are "Prime" numbers "prime" i.e. what's so special about them? Why are they called the "DNA of the number system"? Using calculators, divisibility tests knowledge and perhaps some "Prime Factor Decomposition" techniques, this activity aims to find...

Tags: prime numbers, powers, square roots, cube roots, indices, prime factor decomposition, factors, factor trees, divisibility tests, timestables

Help