Greatest Common Factor

Front

What is the definition of a factor?

Back

A factor is a whole number that can be divided evenly into another number.

Front

List all the factors of 12.

Back

1, 2, 3, 4, 6, 12

Front

What are the factors of 25?

Back

1, 5, 25

Front

What does GCF stand for?

Back

GCF stands for Greatest Common Factor.

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 is the GCF of 8 and 24?

Back

8

Front

What is the GCF of 16 and 18?

Back

2

Front

What is the GCF of 12 and 28?

Back

4

Front

What is the largest factor of any number?

Back

The largest factor of any number is the number itself.

Front

If two numbers have no common factors other than 1, what is their GCF?

Back

Their GCF is 1.