Full lesson (or two) for KS3/KS4 on prime factor trees and using them to simplify and find roots.
Starts with introduction to prime numbers, prime factor trees, then different language exam questions can use and then a high quality Fluency, Reasoning, Problem Solving worksheet for practice.
Then looks at the uses of prime factor trees to simplify large numbers and to identify square and cube numbers.
Review section focuses on using a calculator to find prime factor decomposition and then recapping the applied skills.
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