The GCF is 6.
The GCF is 6.
The GCF is 6.
The GCF is 6.
The GCF is 6.
The GCF of 78 and 30 is 6.
The GCF is 6.
The GCF of 30 and 84 is 6. The GCF of 126 and 12 is also 6.
The GCF of the numbers 6, 12, and 30 is the number 6.
The GCF is 6.
The GCF is 6.
The GCF is 6.