# A truly visual teacher resource for a lesson on Prime Numbers, LCM and HCF!

Guest Blogger: @mathstermaths

From the very nice people at Mathster comes two very visual ways of explaining two of the most complicated routines in Maths – finding the LCM and HCF of two or more numbers using Prime Factors.

These are completely interactive, these two ‘visuals’ can be explored at length by your students. A great way to get the concept over!

Comments are FREE, please leave one below. How did you use the resource in your lesson?

**Prime Factor Decomposition**

**Highest Common Factor (HCF) Lowest Common Multiple (LCM)**

The original resources can be found here Prime Factors HCF / LCM.

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