Prime Factorization Review Lesson 2. 1

A diagram that uses branches to show how a number can be written as the product of of Multiplication prime numbers.

• prime factorization

• factor tree

• communicative property of mulitplication

The expression of a composite number as a product of prime numbers

• factor tree

• prime factorization

• associative property of multiplication

Changing the grouping (or friends) of the factors in a multiplication statement does not change the product describes what?

• associative property of multiplication

• communicative property of multiplication

• identity property of multiplication

Write the prime factorization for each 12. List the factors in order from least to greatest.

• 2 x 3

• 3 x 1 x 2

• 2^{2 x} 3

Write the prime factorization for 30. List the factors in order from least to greatest.

• 2 x 3 x 5

• 3 x 2 x 5

• 6 x 5

Using the Associative Property of Multiplication, which shows (2 x 3) x 5 rewritten?

• (3 x 2) x 5

• 6 x 5

• 3 x (2 x 5)

Write the prime factorization for 630. List the factors in order from least to greatest.

• 2 x 3 x 5 x 7

• 3 x 2 x 3 x 5 x 7

• 2 x 3² x 5 x 7

Using the Associative Property of Multiplication, which shows 7 x (4 x 5) rewritten?

• 7 x ( 5 x 4)

• 7 x 20

• (7 x 4) x 5

Write the prime factorization for 224

• 2 x 2 x 2 x 2 x 7

• 2^{5 x} 7

• 7 x 7 x 7 x 2

Write the prime factorization for 945

• 3 x 3 x 3 x 5 x 7

• 3 x 5 x 7

• 15 x 7