GCF

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

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 6.

Back

1, 2, 3, 6

Front

List the factors of 21.

Back

1, 3, 7, 21

Front

What is the GCF of 6 and 21?

Back

3

Front

What is the GCF of 15 and 35?

Back

5

Front

Which number is a factor of 6? 12, 2, 8, 10

Back

2

Front

Which of the choices is not a factor of 24? 2, 3, 4, 5

Back

5

Front

What is the GCF of 28 and 40?

Back

4