Activity Overview
Students investigate the prime factorisation of a number and determine the quantity of factors. Through a series of carefully scaffolded questions, students determine a rule that computes the quantity of factors based on the prime factorisation of the number.
Objectives
Increase students understanding of the prime factorisation of a number and relate this information to the quantity of factors.
Vocabulary
Investigate index notation and represent whole numbers as products of powers of prime numbers (ACMNA149).
About the Lesson
Students use factor trees, to initially explore the prime factorisation of a number.