This video covers how to find the "Highest Common Factor" of a group of numbers. We cover 2 methods. The first is the easier method, which involves listing out the factors of each number and picking the highest factor shared by all the numbers. The second involves using prime factors.

This video is suitable for maths courses around the world.

UK:
KS3 - Only need to know the first method (up to 1:55)
GCSE Foundation - Only need to know the first method (up to 1:55)
GCSE Higher - All suitable

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