Least Common Multiple

What is the first thing you need to do to find the LCM?

• Add the two numbers

• Multiply the two numbers by

• List the multiples for each number

• Chillax

If you multiply the numbers together, will it always give you the LCM?

• Yes

• No

If you multiply the numbers together, will it always give you a common factor?

• Yes

• No

What is a prime number?

• A number bigger than 1

• A number that only has 2 factors; 1 and itself

• A number with 2 or more factors

What is a factor

• A number that can be multiplied by another number to make a given number

• A number that can be added to another number

• A number that cannot be divided

• A number that can be divided

The LCM for 3 and 9 is

(a)  

The LCM for 4 and 5 is

(a)  

The LCM for 6 and 9 is

(a)  

The LCM for 5 and 10 is

(a)  

The LCM for 8 and 12 is

(a)