There can be no greatest common denominator.
Suppose x is the greatest common denominator.
That requires that 39 divides x, 26 divides x and x is the greatest such number.
But 39 will divide 2x and 26 will divide 2x and 2x is greater than x. So x could not have been a GCD.
The GCF is 13.
The Greatest Common Divisor (GCD) for 111 39 is 3.
GCD = 39 LCM = 1,755
The GCF is 26.
The GCF is 3.
The GCD is: 1The LCM is: 780
The Greatest Common Divisor (GCD) for 520 and 546 is 26.
1
The GCF is 2.
The Greatest Common Divisor (GCD) for 21 39 is 3.
The Greatest Common Divisor/Denominator is 39
The Greatest Common Divisor/Denominator is 39