Integers: Factorising a number

Reason For Learning

Being able to break down a number into its smallest parts (primes) helps with simplifying fractions, finding HCF and LCM, simplifying ratios amonst other things. Learning the strategies for identifying prime factors is useful for making these tasks easier.

Learning Intention

Key Vocabulary Terms

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ACMNA122 Level 6

Identify and describe properties of prime, composite, square and triangular numbers

ACMNA149 Level 7

Investigate index notation and represent whole numbers as products of powers of prime numbers

ACMNA183 Level 8

Carry out the four operations with integers, using efficient mental and written strategies and appropriate digital technologies