Greatest Common Factor

Front

What is the Greatest Common Factor (GCF)?

Back

The 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

1. List the factors of each number. 2. Identify the common factors. 3. Choose the largest common factor.

Front

What are factors of a number?

Back

Factors are whole numbers that can be multiplied together to produce that number.

Front

Find the GCF of 15 and 36.

Back

3

Front

Find the GCF of 20 and 30.

Back

10

Front

Find the GCF of 28 and 49.

Back

7

Front

Find the GCF of 32 and 40.

Back

8

Front

What are the factors of 25?

Back

1, 5, 25

Front

What is the GCF of 12 and 18?

Back

6

Front

What is the GCF of 24 and 36?

Back

12