You need at least two numbers to find a GCF.
5
It is five.
The Greatest Common Divisor (GCD) for 65 35 is 5.
The Greatest Common Divisor (GCD) for 20 65 is 5.
Greatest Common Divisor (GCD) for 20 65 is 5.
The Greatest Common Divisor (GCD) for 63 65 is 1
5
The Greatest Common Divisor is 4
The Greatest Common Divisor is 28
The Greatest Common Divisor is 4
The Greatest Common Divisor is 35
The Greatest Common Divisor is 1