The GCF of 1225 and 85 is 5. The GCF of 12, 25 and 85 is 1.
The GCF is 5.
The GCF is 5.
The GCF is 1.
The GCF is 1.
The GCF is 5.
The GCF is 5.
The GCF is 1.
The GCF is 17.
The GCF is 1.
The GCF of 35, 85 is 5.
Since 5 is a factor of 85, it is automatically the GCF.