Finding The Greatest Common Factor

Watch this tutorial to see an easy method of finding the GCF of any group of numbers.

Factor Trees

Review how to break a composite number into all prime numbers by making a factor tree. At the end, express your answer using exponential notation.

Find the greatest common factor of a pair of numbers.

Find the LCM or GCF using prime factorization.

Review how to solve a problem involving the least common multiple.