First you need to split the numbers down into their prime factors:
20 = 2x2x5
16 = 2x2x2x2
The next step is to identify any common factors. In this case, both numbers have two 2s as prime factors. Multiply these together and you get:
2x2 = 4
Thus the HCF of 20 and 16 is 4.
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Well, darling, the Highest Common Factor (HCF) of 16 and 20 is 4. It's like finding the diva that both 16 and 20 can agree on, and that diva is 4. So there you have it, 4 is the HCF of 16 and 20.
the hcf of 12 and 20 = 4
The HCF of 16 & 33 is... 1
HCF is the highest common factor of two or more numbers. HCF of 20 and 200 is 20.
The GCF is 16.
HCF is the highest common factor of two or more numbers. HCF of 20 and 30 is 10.