The Language of Number · Number and Algebra

Index Notation and Prime Factors

Breaking numbers down into their fundamental building blocks using factor trees and power notation.

Key Questions

  1. 1Why is prime factorisation often called the DNA of a number?
  2. 2How does index notation simplify the representation of very large repeated multiplications?
  3. 3In what ways can a Square Number be identified just by looking at its prime factors?

ACARA Content Descriptions

AC9M7N01
Year: Year 7
Subject: Mathematics
Unit: The Language of Number
Period: Number and Algebra

Suggested Methodologies

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Integers and the Number Line

Visualising and comparing positive and negative integers in practical contexts like temperature and debt.

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