Unit 5 GCF / LCM Word Problems

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF is the largest positive integer that divides all the numbers in a given set 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 is the Least Common Multiple (LCM)?

Back

The LCM is the smallest positive integer that is a multiple of two or more numbers.

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 that appears in both lists.

Front

What is prime factorization?

Back

Prime factorization is the process of expressing a number as the product of its prime factors.

Front

What is the prime factorization of 30?

Back

2 x 3 x 5

Front

What is the prime factorization of 56?

Back

2 x 2 x 2 x 7

Front

What is the GCF of 24 and 30?

Back

6

Front

What is the LCM of 10 and 6?

Back

30

Front

If two joggers complete laps in 10 minutes and 6 minutes, how long until they meet at the start?

Back

30 minutes.