Products of Prime Factors, HCF and LCM

Remodeled version of the lesson pack below. Variation questions from VariationTheory.com by MrBartonMaths. A prime factor decomposition puzzle by TES user MrMawson, and some questions to deepen understanding by Maths4Everyone. Featuring the ladder method rather than the Venn diagram approach. Let me know what you think!

Variation theory questions

Prime factor puzzle

HCF and LCM questions

OLD VERSION: Tutorial on expressing numbers as products of their prime factors. Moves onto calculating highest common factors and lowest common multiples using prime factors and Venn diagrams. Fully differentiated with extension activity.

HCF and LCM RAG

Worded HCF and LCM extension activity