Greatest Common Factor & Least Common Multiple

Front

What is the definition of the Greatest Common Factor (GCF)?

Back

The Greatest Common Factor (GCF) of two or more integers is the largest positive integer that divides each of the integers without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

To find the GCF of two numbers, list the factors of each number, then identify the largest factor that appears in both lists.

Front

What is the definition of the Least Common Multiple (LCM)?

Back

The Least Common Multiple (LCM) of two or more integers is the smallest positive integer that is a multiple of each of the integers.

Front

How do you find the LCM of two numbers?

Back

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

Front

What is the GCF of 35 and 42?

Back

7

Front

What are the factors of 18?

Back

1, 2, 3, 6, 9, 18

Front

What is the LCM of 10 and 48?

Back

240

Front

What is the GCF of 16 and 24?

Back

8

Front

What is the LCM of 7 and 9?

Back

63

Front

What is a prime factor?

Back

A prime factor is a factor that is a prime number, meaning it has no positive divisors other than 1 and itself.