To work this out, you need to write the numbers as the product of their prime factors:
24 = 2x2x2x3
64 = 2x2x2x2x2x2
The next step is to identify any common prime factors. In this case both numbers have three 2s as prime factors. Multiply these together and you get:
2x2x2 = 8
Thus the HCF of 24 and 64 is 8.
The HCF is: 8
4. 24 = 23 x 3 36 = 22 x 32 64 = 26 hcf = 22 = 4
The GCF is 16.
The GCF is 16.
Hcf of 24 and 72 is 24
The HCF of 14 and 24 is 2.
The HCF of 20 and 24 is 4.
8
192
It is: 4
It is: 16
The GCF is 4.