Factors, Multiples, & Number Patterns

Factors, Multiples, & Number Patterns

Review/Quiz

Factors

• the numbers that you multiply to get a product are called factors

• every number greater than 1 has at least 2 factors

• factors should be listed in numerical order

• Example: The factors of 18 are 1,2,3,6,9,18

• Example: The factors of 54 are 1,2,3,6,9,18,27, 54

Multiple Choice

What are the factors of 14?

• 1,14

• 1,2,7,14

• 1,2,3,14

• 1,2,4,14

• 1,4,14

Multiple Select

Select the numbers that have a factor of 5. Mark all that apply.

• 15

• 3

• 31

• 5

• 50

Multiple Select

Troy was making a poster for his room. He arranged 50 trading cards in the shape of a rectangle on the poster. Choose all of the possible arrangements Troy can make.

• 5 rows of 10

• 7 rows of 8

• 25 rows of 2

• 50 rows of 1

Multiple Choice

True or false?

The number 18 is a factor of 6.

• True

• False

Multiples

• You can find multiples of a number by skip counting by that numbers (keep adding the same number)

• Example: The multiples of 12 are 12,24,36,48,60,72,84,96,108,120,132,144

• Example: The multiples of 8 are 8,16,24,32,40,48,56,64,72,80,88,96

• 
  

Multiple Choice

Charniece makes dinner using 1 box of pasta and 1 jar of sauce. If pasta is sold in packages of 6 boxes and sauce is sold in packages of 3 jars, what is the least number of dinners that Charniece can make without any supplies leftover?

• 12

• 6

• 3

• 12

• 18

Multiple Select

Jayla has several packages of raisins. Each package contains 3 boxes of raisins. Which could be the number of boxes of raisins Jayla has? Mark all that apply.

• 9

• 18

• 23

• 27

• 32

Multiple Choice

True or False?

The number 54 is a multiple of 6?

• True

• False

Number Patterns

• A pattern is an ordered set of numbers or objects.

• Each number or object in the pattern is called a term.

• Saying the numbers aloud helps you to describe and identify the pattern.

• If the numbers, or tems are increasing, the pattern is using addition or multiplcation

• If the numbers, or terms are decreasing, the pattern is using subtraction or division

• More than one operation may be used to describe a pattern

• Example: Describe the pattern: 6, 14, 22, 30...what's the next term? Describe the pattern.

Multiple Choice

What's the rule for this pattern?

5, 13, 21, 29, 37, 45

• add 5

• times 2

• add 4

• add 8

Multiple Choice

The first number is 20. The rule is add 3. What's the 3rd number?

• 23

• 26

• 29

• 32

Prime and Composite

• Prime numbers only have 2 factors (1 and itself)

• Composite numbers have 3 or more factors

• The number 1 is neither prime nor composite because it only has 1 factor

• Example of prime numbers: 2,3,5,7,11,13,17,19,23,29

• Example of composite numbers: 4,6,8,9,12,14,15,16,18,20,21

Multiple Choice

Is the number 9 prime or composite?

• prime

• composite

Multiple Choice

Is the number 51 prime or composite?

• prime

• composite

Multiple Choice

Is the number 38 prime or composite?

• prime

• composite

Multiple Choice

Is the number 71 prime or composite?

• prime

• composite

Multiple Choice

Is the number 1 prime or composite?

• prime

• composite

• neither