Prime and Composite

Is 81 prime or composite?

• Prime

• Composite 

Tags

CCSS.4.OA.B.4

What is a composite number?

• a number with ONLY TWO factors

• a number with LESS THAN TWO factors

• a number with MORE THAN TWO factors

• a number with ONLY ONE factor

Tags

CCSS.4.OA.B.4

Which one is a composite number?

• 37

• 41

• 21

• 29

Tags

CCSS.4.OA.B.4

The only even prime number

• 2

• 3

• 5

• 4

Tags

CCSS.4.OA.B.4

The number ​ (a)   is the only even prime number because it has ​ (b)  

• 2

• 4

• 1

• exactly two factors

• more than 2 factors

• exactly 1 factor

Tags

CCSS.4.OA.B.4

Which of the following numbers is a composite number?

• 2

• 3

• 5

• 9

Tags

CCSS.4.OA.B.4

Which of the following numbers is a prime number?

• 4

• 6

• 11

• 15

Tags

CCSS.4.OA.B.4

Sort the numbers

*Hint: use your prime numbers chart!

• 19

• Neither Prime nor Composite

• 24

• Composite Number

• 0

• Prime Number

Tags

CCSS.4.OA.B.4

Are each of these numbers prime or composite?

• prime

• 3

• composite

• 10

• composite

• 7

• composite

• 15

• prime

• 12

Tags

CCSS.4.OA.B.4

The number 25 is ​ (a)   because it has ​ (b)  

• composite

• prime

• more than 2 factors

• exactly 2 factors

Tags

CCSS.4.OA.B.4