Prime Factorization

Prime Factorization

What is Prime Factorization? How do we use it?

Factor Trees

How is factor threes looks like?

Factor Trees

How is factor threes looks like?

Multiple Choice

2 x 2 x 2 is the prime factorization of ...

• 6

• 22

• 12

• 8

Multiple Choice

Use a factor tree to find the prime factorization of 32

• 2 x 2 x 2 x 4

• 2 x 2 x 2 x 2 x 2

• 4 x 4 x 2

• 2 x 2 x 2 x 2 x 1

Multiple Choice

Use a factor tree to find the prime factorization of 42

• 2 x 3 x 7

• 4 x 4 x 3

• 6 x 7

• 5 x 4 x 2

Multiple Choice

Use a factor tree to find the prime factorization of 33

• 3 x 3 x 3 x 2

• 3 x 11

• 33

• 3 x 10 + 1

Multiple Choice

2 x 2 x 2 x 2 x 3 is the prime factorization of...

• 42

• 48

• 43

• 44

Multiple Choice

Use a factor tree to find the prime factorization of 60

• 2 x 2 x 3 x 5

• 2 x 2 x 3

• 2 x 3 x 5

• 2 x 3 x 3

Multiple Choice

Write 28 as a product of its prime factors.

• 2 x 2 x 7

• 4 x 7

Multiple Choice

Write 63 as a product of its prime factors.

• 9 x 7

• 3 x 3 x 7

Multiple Choice

If the expanded form is 2 x 2 x 2 x 3 x 3x 5 x 7 what would the exponential form be?

• 2 x 3 x 5 x 7

• 2³ x 3² x 5 x 7

• 2² x 3² x 5 x 7

Multiple Choice

What number has the prime factorization of 2² x 11?

• 44

• 42

• 43

• 48

Let's use Prime Factorization/ Factor tree

to find the Greatest Common Factor (GCF)

What is the GCF of this 2 numbers?

What is the GCF of this 2 numbers?

What is the GCF of this 2 numbers?

Multiple Choice

What is the GCF of 24 and 150?

• 2

• 2 x 3 = 6

• 2 x 3 x 5 = 30

• 2 x 2 = 4

Multiple Choice

The GCF of 12 and 18 is ...

• 2

• 2 x 3 = 6

• 3 x 3 = 9

• 2 x 2 x 3 = 12

Multiple Choice

The GCF of 18 and 21 is

• 2

• 2 x 3 = 6

• 3

• 7

Multiple Choice

What is the Least Common Multiple/ LCM/KPK of 4 and 6?

• 6

• 2

• 12

• 24

Multiple Choice

What is the Least Common Multiple/ LCM/KPK for 4 and 7?

• 4

• 28

• 7

• 14

Multiple Choice

What is the Least Common Multiple/ LCM/KPK for 10 and 20?

• 20

• 30

• 40

• 60