The GCF is 21.
The GCF is 1.
The GCF is 5.
The GCF is 1.
GCF(21, 5, 35) = 1
The GCF of 105 and 147 is 21. Dividing 21 into each of these gives 5 and 7 respectively. These are not further divisible by any number except for 1.
The GCF of 255 and 525 is 15.The GCF is 15.
The GCF is 21.
The GCF is 1.The GCF of 14, 21 and 24 is 1.
The GCF is 21.
The GCF is 3.
The GCF is 1.