Greatest Common Factor

Front

What is the greatest common factor (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 that they have in common.

Front

What are factors?

Back

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

Front

What are the factors of 12?

Back

1, 2, 3, 4, 6, 12

Front

What is the GCF of 30 and 49?

Back

1

Front

Is 3 a factor of 12?

Back

Yes

Front

What are the factors of 25?

Back

1, 5, 25

Front

What is the GCF of 35 and 47?

Back

1

Front

What is the GCF of 14 and 35?

Back

7

Front

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

Back

Their GCF is 1.