3
12 = 2^2 x 3
21 = 3 x 7
30 = 2 x 3 x 5
hcf = 3
The GCF is 3.
The GCF is 3.
The GCF is 3.
The GCF is 3.
16 and 21
The GCF is 6.
The GCF is 3.
The GCF is: 3
The GCF is 3.
The GCF of the numbers 6, 12, and 30 is the number 6.
The GCF is 3.
The GCF is 3.