The HCF of the given numbers is 1
The GCF is 3.
It is: 3
3
The GCF is 1.
The GCF is 3.
The HCF is 3
3.
The GCF is 7.
3 is the hcf
The GCF is 3.
Factors of 18 are 3,3,& 2. Factors of 21 are 3 & 7 One lot of '3' is common to both so '3' is the HCF.
3 12 = 2^2 x 3 21 = 3 x 7 30 = 2 x 3 x 5 hcf = 3