GCF

Front

What is the GCF (Greatest Common Factor)?

Back

The GCF is the largest positive integer that divides all the given numbers 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 can be multiplied together to get another number.

Tags

CCSS.4.OA.B.4

Front

Find the GCF of 28 and 49.

Back

7

Front

Find the GCF of 99 and 54.

Back

9

Front

Find the GCF of 64 and 144.

Back

16

Front

What is the GCF of 20, 44, and 88?

Back

4

Front

What is the relationship between GCF and LCM (Least Common Multiple)?

Back

The GCF is used to simplify fractions, while the LCM is used to find common denominators.

Front

Can the GCF of two prime numbers be greater than 1?

Back

No, the GCF of two prime numbers is always 1.

Front

What is the GCF of 12 and 18?

Back

6