Write down all factors of $225$225.
Separate numbers with a comma.
Write down all factors of $12$12.
What number is a factor of every number?
Which of these numbers is $6$6 a factor of?
Find common factors and multiples.
Find the greatest common factor (GCF) and the least common multiple (LCM).
Use the distributive property to express a sum of two whole numbers with a common factor as a multiple of a sum of two whole numbers.