Highest common factor and lowest common multiple.
Skill: Factors, multiples, HCF and LCM
How to play
- HCF: the biggest number that divides both.
- LCM: the smallest number both divide into.
- Check: HCF × LCM = the two numbers multiplied.
Example: HCF(12, 18) = 6 and LCM(12, 18) = 36
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