How to find the greatest common factor of 28 and 42?
Problem. Find the gcf of 28 and 42.
The prime factorization of 28
The prime factorization of 42
Find the common prime factors of these two numbers 28 and 42
The common factors of 28 and 42 are
The product of these common prime factors is the greatest common factor of 28 and 42
The gcf of 28 and 42 is 14
The problem is solved.