The GCF is 2.
It is 1 but the HCF is 2
4
the hcf of 12 and 20 = 4
the HCF is 6
LCM is least common multiple, so start by factoring 24. 24's factors are: 1, 2, 3, 4, 6, 8, 12, and 24. So two of these numbers have to have a HCF (or highest common factor) of 2 to be the answer. You can rule out 1 and 3 because 2 isn't a factor. Then start listing out the multiples. Remember that 24 has to be the lowest multiple the two numbers have in common. 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 4, 8, 12, 16, 20, 24 6, 12, 18, 24 8, 16, 24 12, 24 24 6 and 8 OR 8 and 12 OR 12 and 24 are the two here whose least common multiple is 24. But 6 and 8 are the only pair whose HCF is 2.
It is 1 but the HCF is 2
The GCF is 2.
Since 12 is a factor of 24, it is automatically the GCF.
4
12
4
It is: 4
the hcf of 12 and 20 = 4
The GCF is 8.
5.. divides into 5 and 10.
The greatest common factor is the highest number that divides exactly into two or more numbers. 8: 1, 2, 4, 8 12: 1, 2, 3, 4, 6, 12 The GCF for 8 and 12 is 4.
The GCF is 2.