You need at least two numbers to find something in common.
Greatest common factor of 16 and 16 is 16.
The greatest common factor of 96 , 16 = 16
The greatest common factor for 48 and 16 is 16.
The Greatest Common Factor of 16, 64, 240 is 16.
The greatest common factor for 16 and 38 is 2.
The greatest common factor of 16 and 34 is 2.
The greatest common factor for 15 and 16 is 1.
The greatest common factor of 16 and 28 is 4
The greatest common factor of 412 and 16 is 4.
The greatest common factor of 16 and 86 is 2.
The Greatest Common Divisor of 16, 28 is 4.
The greatest common facter for 94 and 16 is 2.