GCF & LCM

Front

What does GCF stand for in mathematics?

Back

GCF stands for Greatest Common Factor, which is the largest positive integer that divides two or more integers without leaving a remainder.

Front

What does LCM stand for in mathematics?

Back

LCM stands for Least Common Multiple, which is the smallest positive integer that is a multiple of two or more integers.

Front

How do you find the GCF of two numbers?

Back

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

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 identify the smallest multiple that they have in common.

Front

What is the GCF of 12 and 18?

Back

The GCF of 12 and 18 is 6.

Front

What is the LCM of 4 and 5?

Back

The LCM of 4 and 5 is 20.

Front

List all the factors of 15.

Back

The factors of 15 are 1, 3, 5, and 15.

Front

Which of the following is a factor of 20: 2, 3, 5, 7?

Back

The factors of 20 are 1, 2, 4, 5, 10, and 20. Therefore, 2 and 5 are factors of 20.

Front

What is a multiple of 8?

Back

A multiple of 8 is any integer that can be expressed as 8n, where n is an integer. Examples include 8, 16, 24, etc.

Front

Is 30 a multiple of 6?

Back

Yes, 30 is a multiple of 6 because 30 divided by 6 equals 5, which is an integer.