Factor Trees

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number.

Tags

CCSS.4.OA.B.4

Front

What are prime numbers?

Back

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

Tags

CCSS.4.OA.B.4

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 produce that number.

Tags

CCSS.4.OA.B.4

Front

What is a factor tree?

Back

A factor tree is a diagram that shows the prime factorization of a number, breaking it down into its prime factors.

Front

What is the prime factorization of 24?

Back

The prime factorization of 24 is 2 x 2 x 2 x 3.

Front

What are the common factors of 16 and 24?

Back

The common factors of 16 and 24 are 1, 2, 4, and 8.

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor (GCF) is the largest factor that two or more numbers have in common.

Front

How do you determine the GCF of two numbers?

Back

To determine the GCF, list the factors of each number and identify the largest factor they share.

Front

What is the prime factorization of 25?

Back

The prime factorization of 25 is 5 x 5.

Front

What are the common factors of 18 and 27?

Back

The common factors of 18 and 27 are 1 and 3.