It's common to learn about least common multiples. Viewers of a short video discover how to determine the least common multiple of two whole numbers. They see that they need to write out the multiples of each number and then find the...

Prepare your classes for future work by reinforcing multiples and finding least common multiples. Learners see how to identify the least common multiple of a set of numbers. The instructor shows examples including a set of two and a set...

Connect factorizations to the multiples of given numbers with a video that shows the first five multiples of different numbers. The instructor emphasizes the relationship between the multiples and the factors of the original number.

A common multiple is exactly what it says it is: a multiple that two or more numbers have in common. So then a least common multiple would be the smallest common multiple that two or more numbers have in common. Watch this video to see...

How can you tell if two fractions are equal or different when they have different denominators? Watch this video to find out! A tutorial on common denominators, this video explains each step necessary to find common denominators, create...

Can looking at the price per share tell a buyer the value of a stock? Not necessarily, Sal explains as he calculates the price-to-earnings ratio to demonstrate this relativity. He reminds learners to consider the source of a company's...

How can you tell if 2 fractions are equal or different when they have different denominators? Watch this video to find out! A tutorial on common denominators, this video explains each step necessary to find common denominators, create...

Simplify division for young mathematicians by teaching them how to use friendly numbers when finding quotients. Three examples are presented in this instructional video that models the process of breaking large dividends into sums of...

Multiplication is just repeated addition. Multiples are products of multiplying the same number, or of adding the same number repeatedly. It is useful to know about multiples to find least common multiples between numbers. Watch this...

Use this BBC Skillswise math site to learn about multiples and factors using the different activities. Factsheets and worksheets available.

This lesson demonstrates how to find the lowest common multiple using a multiple chart. It is 1 of 14 in the series titled "Finding the LCM with Multiple Charts."

This lesson demonstrates the comparison of multiples of two or more numbers to find the lowest common multiple. It is 1 of 11 in the series titled "Finding the Lowest Common Multiple."

Video identifying prime numbers.

In this lesson, you will learn to determine if a number is a multiple of 2, 3, or 6 by using divisibility rules. [6:11]

In this lesson, will learn to determine if a number is a multiple of 4 or 7 by using divisibility rules. [5:28]

Video tutorial uses examples to reinforce understanding of multiples. [5:30]

This QuickTime movie provides a lesson on identifying multiples. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.

This QuickTime movie provides an opportunity to identify common multiples. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.

Sal Khan uses factors and multiples to figure out days of the week.

Sal Khan uses divisibility rules to determine if numbers are factors of 154 and then finds multiples of 14.

Lindsay breaks down division problems using multiples of 10.

This lesson demonstrates how to find the lowest common multiple using factor trees. It is 12 of 14 in the series titled "Finding the LCM with Factor Trees."

This lesson demonstrates how to find the lowest common multiple using factor trees. It is 13 of 14 in the series titled "Finding the LCM with Factor Trees."