# High Common Factor (HCF) & Lowest Common Multiple (LCM)

- HCF is the highest common factor between the numbers.
- LCM is the lowest common multiple between the numbers.

**Question**

Solve the follow questions

- Find the HCF for 24 & 18.
- Find the LCM for 6 & 9.

**Answer**

*6**18*

## About the Math Tutor - Dr Loo

I am a PhD holder with 8 years of teaching experience at secondary school and university. My expertizes are mathematics, statistics, econometrics, finance and machine learning.

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