13 is prime so in order for the GCF to be above 1, 13 would have to divide into 60. It does not, so the GCF is 1.
The GCF is 1.
The GCF is 1.
The greatest common factor of 60 and 120 is 60.
The GCF is 3.
The GCF/HCF of 60 and 350 is 10.
The GCF of 54, 60 and 78 is 6. This leaves you with 9, 10 and 13 respectively. These are not further divisible by anything in common aside from by 1.
The GCF of 42, 60 and 78 is 6. You are left with 7, 10 and 13 respectively after division. There are no further factors in common (aside from 1).
The GCF of 2040 and 60 is 60
Since 15 is a factor of 60, it is automatically the GCF.
The GCF is 12.
The GCF is 4.
The GCF is 60.