Respuesta :

the answer would have to be 9 since both 27 and 9 are divisible by 9

Answer:

9

Step-by-step explanation:

Greatest common factor (GCF) of 9 and 27 is 9. We will now calculate the prime factors of 9 and 27, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9 and 27.