The Power of Number · Number and Operations

Primes and Composites

Breaking numbers down into their fundamental building blocks using prime factorisation.

Key Questions

  1. 1Why are prime numbers considered the atoms of the number system?
  2. 2How can prime factor trees help us find the highest common factor of two large numbers?
  3. 3Is there a limit to how many prime numbers exist?

National Curriculum Attainment Targets

KS3: Mathematics - Number
Year: Year 7
Subject: Mathematics
Unit: The Power of Number
Period: Number and Operations

Suggested Methodologies

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