1 is a common factor of all whole numbers. To find common factors: List the factors of each number. Compare the factors to find numbers that are the same (or common) in each list.
The highest common factor (HCF) of two numbers is the largest number that is a factor of both numbers. For example, the highest common factor (HCF) of \({12}\) and ...
Now that prime factors have been covered in-depth, this week’s maths lesson will focus on the Highest Common Factors, also known as HCF. HCF can also be described as the biggest number that will ...
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