The greatest common denominator of any set of denominators is infinite.
7
14.
The Greatest Common Factor of 15, 21, 28: 1
The Greatest Common Divisor of 15, 78 is 3.
The Greatest Common Divisor/Denominator is 4
16 = 2428 = 22 * 744 = 22 * 11greatest common denominator: 22 = 4
28=2*2*78=2*2*22*2=4
It is 1
The GCF is 1.
The Greatest Common Factor of 28 and 60 is four. 28 divided by 4 is 7, and 60 divided by 4 is 15. To show that it is the greatest 7 nor 15 can be reduced.
The greatest common factor of 15, 28 and 35 is 1.