(6thG) 8 Prime Factorization

8

Table of Contents

4. Exponents and Powers
5. Order of Operations
6. Divisibility Rules
7. Factors and Multiples
8.Prime Factorization

1. TOPIC

6th Grade

Spiral Review

3

Multiple Choice

The answer to a multiplication problem.

• Factors

• Quotient

• Multiply

• Product

Match

Match the multiplication.

• 10 x 20

• 50 x 100

• 300 x 40

• 50 x 1000

• 30 x 40

200

5000

12000

50000

1200

• 200

• 5000

• 12000

• 50000

• 1200

Multiple Choice

The number you divide by.

• Divisor

• Dividend

• Factors

• Quotient

Spiral Review

4

Multiple Select

Which equations with exponential expressions are true

• 3² = 3 • 3

• 4⁴ = 4 • 4

• 5⁴ = 4 • 4 • 4 • 4 • 4

• 7 • 7 • 7 • 7 • 7 • 7 = 7⁶

• 9³ = 9 • 9 • 9

Multiple Choice

What is the value of 4² ?

• 8

• 2

• 16

• 4

Spiral Review

6

Match

Match each number with the divisibility rule that corresponds.

the last digit is even or 0

the sum of the digits is divisible by 3

the last two digits are divisible by four

the last digit is cero or five

the number is divisible by both, two and three

• the last digit is even or 0

• the sum of the digits is divisible by 3

• the last two digits are divisible by four

• the last digit is cero or five

• the number is divisible by both, two and three

Multiple Select

Select all the numbers divisible by 2

• 16

• 25

• 1,350

• 998

Multiple Select

Select ALL of the numbers divisible by 5.

• 83

• 900

• 145

• 15,556

Multiple Choice

All of these numbers are divisible by 5 except for...

• 75,395

• 222,222,235

• 984,940

• 8,943,892

Multiple Choice

2520 is divisible by 9 because:

• The number is divisible by 2 and 3

• The sum of the digits is a multiple of 3

• The sum of the digits is a multiple of 9.

• The sum of the digits is even.

Multiple Choice

Which of these numbers is divisible by 2 AND 5?

• 675

• 670

• 674

• 673

Multiple Choice

Is 333,353 divisible by 3?

• Yes

• No

Spiral Review

5

Multiple Choice

Which operation would you do first in the following equation?

10 - 4 ÷ 1 x 5

• Subtraction

• Division

• Multiplication

• Addition

Spiral Review

7

Make sure you know the difference between a FACTOR & a MULTIPLE!

​A factor is used to multiply
A multiple is what you get when you multiply (skip counting)

Match

Match the following factors and multiples.

• 1, 2, 5, 10

• 10, 20, 30, 40, ...

• 4, 8, 12, 16, ...

• 1, 2, 4

• 1, 5

Factors of 10

Multiples of 10

Multiples of 4

Factors of 4

Factors of 5

• Factors of 10

• Multiples of 10

• Multiples of 4

• Factors of 4

• Factors of 5

OUR GOAL FOR THIS LESSON

6.NS.4
I can find the prime factorization of a number.

Learning Objective

I can get 100% accuracy on my SC
in Quizizz.

Success Criteria

Multiple Choice

What is the prime factorization of 3150 in exponential form?

• $$2^2\times3^2\times5^2$$  

• $$2\times3^2\times5^2\times7$$  

• $$2\times3^3\times7$$  

• $$5^2\times3^2\times11$$  

Key Vocabulary

■ Prime

■ Composite

■ Factor/Factor Pair

■ Divisibility

Look Out for these Math Words

Real World Relevance

You need to learn this because…

PINK MEANS PENCIL

When you see a

PINK SLIDE

You should have a

PENCIL in your

hand to write down

notes!!

Write in Journal

8

Write in Journal

Fill in the Blanks

Write in Journal

Multiple Choice

What is the missing factor?

• 1

• 2

• 5

• 8

Write in Journal

Write in Journal

Write in Journal

Multiple Choice

The number 1 is

• Prime

• Composite

• Neither prime nor composite

​Did you know that all even numbers are composite EXCEPT the number 2?

​

​2 is the only even Prime Number!

Write in Journal

Write in Journal

Multiple Choice

A composite number ...

• has more than 2 factors.
• has one factor.
• has at least 10 factors.
• is always a really big number.

Multiple Choice

All of these are prime except

• 17

• 9
• 2
• 13

Categorize

Options (7)

1

2

17

31

12

63

100

Organize these options into the right categories

Prime

Composite

Neither

Categorize

Options (7)

1

11

2

29

12

28

27

Organize these options into the right categories

Prime

Composite

Neither

Write in Journal

Write in Journal

Multiple Choice

A prime number...

• has one factor.
• has more than 2 factors.
• has 100 factors.
• has exactly 2 factors: 1 and the itself.

Write in Journal

Write in Journal

Write in Journal

Write in Journal

Write in Journal

Write in Journal

Write in Journal

Multiple Choice

We use exponential notation

• to simplify a repeated multiplication problem by expressing the number as an exponent.

• to answer all math problems.

• only when we add and subtract.

Multiple Choice

prime factorization

• the act of breaking a number down into all of its prime factors.

• to add all numbers together

Write in Journal

Multiple Choice

What is the prime factorization of 18?

• 2 x 9

• 1 x 18

• 2 x 3 x 3

Write in Journal

Multiple Choice

2 x 2 x 2  or 2³ is the prime factorization of

• 6
• 12
• 22
• 8

Write in Journal

Write in Journal

Write in Journal

Let’s check for SUCCESS

I will with 100% accuracy in QUIZZIZ.

Success Criteria

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