The greatest common factor (GCF or GCD or HCF) of a set of whole numbers is the largest positive integer that divides evenly into all numbers with zero remainder.
Answer:
GCF = 1
for the values 16, 27
The factors of 16 are: 1, 2, 4, 8, 16
The factors of 27 are: 1, 3, 9, 27
