GCF and Prime Factorization Review

Front

What is the GCF (Greatest Common Factor)?

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

1. List the factors of each number. 2. Identify the common factors. 3. The largest of these common factors is the GCF.

Front

What is prime factorization?

Back

Prime factorization is expressing a number as the product of its prime factors.

Front

What are prime numbers?

Back

Prime numbers are numbers greater than 1 that have no positive divisors other than 1 and themselves.

Front

What is the prime factorization of 28?

Back

2^2 • 7

Front

What is the prime factorization of 49?

Back

7^2

Front

What is the GCF of 28 and 49?

Back

7

Front

Which pair of numbers has a GCF of 8? (8, 36) (40, 80) (16, 56) (24, 42)

Back

16, 56

Front

What is the GCF of 9 and 15?

Back

3

Front

What is the GCF of 18 and 24?

Back

6