Finding LCM and GCF

Front

What is the Least Common Multiple (LCM)?

Back

The LCM of two or more numbers is the smallest number that is a multiple of each of the numbers.

Front

How do you find the LCM of two numbers?

Back

List the multiples of each number and find the smallest common multiple.

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF of two or more numbers is the largest number that divides each of the numbers without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

List the factors of each number and find the largest common factor.

Front

What is a factor?

Back

A factor is a number that can be multiplied by another number to get a product.

Front

What is a multiple?

Back

A multiple is the result of multiplying a number by an integer.

Front

What is the GCF of 24 and 36?

Back

The GCF is 12.

Front

What is the LCM of 3 and 5?

Back

The LCM is 15.

Front

If Jenny goes to dance class every 6 days and karate class every 12 days, when will she go to both classes?

Back

Every 12 days.

Front

What is the LCM of 4 and 10?

Back

The LCM is 20.