GCF and Prime Factorization

Front

What is the definition of factors?

Back

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

Tags

CCSS.4.OA.B.4

Front

What are the factors of 24?

Back

1, 2, 3, 4, 6, 8, 12, 24

Tags

CCSS.4.OA.B.4

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.

Tags

CCSS.4.OA.B.4

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 factors.

Tags

CCSS.4.OA.B.4

Front

Which of the following is a prime number: 2, 4, 6, 8?

Back

2 is a prime number.

Tags

CCSS.4.OA.B.4

Front

Which of the following is a composite number: 3, 5, 7, 9?

Back

9 is a composite number.

Tags

CCSS.4.OA.B.4

Front

List all prime numbers between 1 and 20.

Back

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

Tags

CCSS.4.OA.B.4

Front

What is the prime factorization of 18?

Back

3 x 3 x 2 or 3^2 x 2

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

Find the GCF of 12 and 18.

Back

The GCF of 12 and 18 is 6.