Prime Factorization/GCF Check

Front

What is prime factorization?

Back

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

Front

What are prime numbers?

Back

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

Front

List the prime numbers less than 20.

Back

2, 3, 5, 7, 11, 13, 17, 19.

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that is not prime, meaning it has more than two positive divisors.

Front

What is the greatest common factor (GCF)?

Back

The GCF of two or more numbers is the largest number that divides all of them 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 they have in common.

Front

What are the factors of 15?

Back

1, 3, 5, 15.

Front

Which number is NOT prime: 29, 23, 17, 39?

Back

39 is NOT a prime number.

Front

What is the prime factorization of 8?

Back

2 x 2 x 2.

Front

What is the prime factorization of 12?

Back

2^2 x 3.