[Free Registration/Login may be required to access all resource tools.] Find the greatest common factor of a given numbers using factor trees.

This instructional activity provides a series of problem-solving questions that require higher order thinking skills. Questions will include finding the greatest common divisor, and least common multiple.

In this video, learn how to find the greatest common factor of two numbers. Then, see how this can be used to solve problems with large numbers. In the accompanying classroom activity, students learn to find prime factors using factor...