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4
The GCF is 2.
12
the hcf of 12 and 20 = 4
It is 1 but the HCF is 2
If you mean 28, 49 and 84 then the hcf is 7
It is: 4
The GCF is 8.
Since 12 is a factor of 24, it is automatically the GCF.
The GCF is 4.
If you mean 12, 16 and 28 then the HCF is 4