GCF and LCM

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more numbers is the smallest multiple that is exactly divisible by each of the numbers.

Front

How do you find the LCM of two numbers?

Back

To find the LCM of two numbers, list the multiples of each number and find the smallest multiple that appears in both lists.

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer. For example, multiples of 3 are 3, 6, 9, 12, etc.

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor (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 that appears in both lists.

Front

What are factors?

Back

Factors are numbers that divide another number evenly, without leaving a remainder. For example, factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

What is the LCM of 4 and 10?

Back

20

Front

What is the LCM of 8 and 5?

Back

40

Front

Which of the following is a multiple of 7: 14, 17, 22?

Back

14

Front

What is the GCF of 12 and 6?

Back

6