The GCF is 1.
The GCF of 6 and 27 is 3. The GCF of 10 and 25 is 5. The GCF of all of them is 1.
The GCF is 5.
GCF of 6 and 25 is 1.
The GCF is 5.
The GCF is 5.
The GCF is 5.
The GCF is 5.
5, 10, 15, 20, 25, 30
GCF of 140 and 25 is 5.
The GCF is 5.
The GCF is 5.
The GCF is 5.