Greatest Common Factor

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF is the largest positive integer that divides two or more numbers without leaving a remainder.

Front

Find the GCF of 30 and 36.

Back

6

Front

What is the GCF of 18 and 24?

Back

6

Front

Find the GCF of 14 and 22.

Back

2

Front

What is the GCF of 9 and 15?

Back

3

Front

What is the GCF of 24 and 30?

Back

6

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

What is a prime number?

Back

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

Front

What is the relationship between GCF and prime factorization?

Back

The GCF can be found by multiplying the lowest powers of all prime factors common to the numbers.