Question: what is the greatest common factor gcf of 16 and 6?
Answer: Greatest Common Factor of 16 and 6. Greatest common factor (GCF) of 16 and 6 is 2. We will now calculate the prime factors of 16 and 6, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16 and 6.