Respuesta :
Answer:
9
Step-by-step explanation:
9 = 3 * 3
27 =3 * 3 * 3
GCF = 3*3 = 9
Ans: We found the factors and prime factorization of 9 and 27. The biggest common factor number is the GCF number. So the greatest common factor 9 and 27 is 9.