Question: what is the greatest common factor gcf of 16 and 10?
Answer: Greatest Common Factor of 10 and 16. Greatest common factor (GCF) of 10 and 16 is 2. We will now calculate the prime factors of 10 and 16, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 10 and 16.