Unfortunately, that would be only one.
The GCF is 1.
The GCF is 1.
The GCF is 2. The LCM is 240.
The GCF is 15.
The GCF of 15 and 27 is 3. The GCF of 15, 20 and 25 is 5. The GCF of 15, 27, 15, 20 and 25 is 1.
The GCF is 3.
The GCF is 3.
The GCF is 5.
The GCF is 5.
The GCF is 1.
The GCF is 4.
The answer is 1
It is 5 because: 35-1,5,7,35 20-1,2,4,5,10,20 & 15-1,3,5,15