Imagine Learning Classroom
Learn Zillion: Find the Gcf and Lcm Using Prime Factorization
In this lesson, you will learn how to find the GCF and LCM of two whole numbers by using their prime factors. [4:40]
Loyola University Chicago
Math Flix: Table of Factors
This QuickTime movie provides an opportunity to identify factors and with that information identify prime numbers. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Khan Academy
Khan Academy: Recognizing Prime and Composite Numbers
Can you recognize the prime numbers in this group of numbers? Which are prime, composite, or neither?
Khan Academy
Khan Academy: Randomized Algorithms: Randomized Algorithms (Intro)
How could random numbers speed up a decision algorithm? This video introduces randomized algorithms.