16, 32, 48
I used common sense.
The GCF of the given three numbers is 5
The GCF of the given three numbers is 7
The GCF is 3.
The GCF is 4.
You need at least two numbers to find a GCF and there can only be one GCF per set of numbers. Other than that...
The GCF of these three numbers is 5.
The GCF of all three numbers is 20 !
The gcf of the given three numbers is 1
15, 30 and 45 have a GCF of 15.
The GCF of the given three numbers is 23
The GCF of the given three numbers is 1
The GCF of the given three numbers is 1
The GCF of the given three numbers is 14
The GCF of the given three numbers is 1
The GCF of the given three numbers is 1
The GCF of the given three numbers is 5
The GCF of the given three numbers is 7