What is the GCF of 12 and 16?
Greatest Common Factor of two or more numbers is the largest possible number which divides the given numbers exactly without any remainder.
Answer: GCF of 12 and 16 is 4
Two methods to find the GCF of 12 and 16 are explained below.
Methods to find GCF of 12 and 16

Prime factorization Method

Listing the common factors method
Method1: GCF of 16 and 12 by Prime Factorization
Let us prime factorise 16 and 12 as a product of its prime numbers
Method2: GCF of 16 and 12 by Listing the Common Factors
Common Factors of 8 and 12 : 1, 2, and 4
GCF of 16 and 12 is 4