Finding GCF and LCM

Front

What is the GCF (greatest common factor)?

Back

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

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor they have in common.

Front

What is the LCM (least common multiple)?

Back

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

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and identify the smallest multiple they have in common.

Front

What is the GCF of 9 and 15?

Back

3

Front

What is the LCM of 6 and 8?

Back

24

Front

What is the GCF of 18 and 24?

Back

6

Front

What is the LCM of 5 and 20?

Back

20

Front

What is the LCM of 2 and 24?

Back

24

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number.

Tags

CCSS.4.OA.B.4