GCF

Front

What is the GCF?

Back

The Greatest Common Factor (GCF) is the largest number that divides two or more 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 they have in common.

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number.

Front

List the factors of 12.

Back

1, 2, 3, 4, 6, 12

Front

List the factors of 15.

Back

1, 3, 5, 15

Front

What is the GCF of 20 and 30?

Back

10

Front

What is the GCF of 14 and 20?

Back

2

Front

What is the GCF of 4 and 12?

Back

4

Front

How can you use prime factorization to find the GCF?

Back

Prime factorization involves breaking down each number into its prime factors and then multiplying the lowest powers of common prime factors.

Front

What is the GCF of 8 and 12?

Back

4