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Anonymous
It is not possible to give a sensible answer to this question. The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!
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You need at least two numbers to find a GCF.
The HCF is: 2The LCM is: 2,520
8
It is: 12
The hcf of 60 and 72 is 12
The GCF is 9.