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 factors of a number?

Back

To find the factors of a number, list all the whole numbers that can be multiplied together to get that number.

Front

What are the factors of 25?

Back

1, 5, 25

Front

What is the GCF of 48 and 64?

Back

16

Front

What is the GCF of 18 and 27?

Back

9

Front

What is the GCF of 60 and 75?

Back

15

Front

What is the GCF of 15 and 36?

Back

3

Front

Why is finding the GCF important?

Back

Finding the GCF is important for simplifying fractions and solving problems involving ratios.

Front

What is a prime number?

Back

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is a composite number?

Back

A composite number is a number that has more than two positive divisors.