These activities support a lesson on finding the least common multiple of a pair of large numbers.
*Students will already need to be familiar with breaking a number into its prime factors*.
The pack contains:
1. Venn Diagram Activity
Place the numbers into the correct part of the venn diagram by deciding if they are multiples of particular numbers.
2. True or False Activity
Decide whether given numbers are multiples of others.
3. Sorting Activity
Determine whether a number written in its prime factored form is a multiple of X, Y, both or neither. Leads into looking at how to make multiples of two numbers.
4. Least Common Multiple Table
Students must determine the least common multiple of a set of each pair of numbers to complete the table. Requires some backwards thinking, i.e. if this is the LCM, what were the numbers?
5. Match Three!
Students must really think backwards and forwards to match pairs of numbers to their least common multiple.
Tags: Least Common Multiple, Lowest Common Multiple, Prime factorization.