Prime Composite Even Odd

If I multiply an odd and an odd number, what will my answer be? ( ODD x ODD = ? )

• Even

• Odd

• Either

• Not possible

Tags

CCSS.3.OA.D.9

Select all prime numbers:

• 51

• 2

• 1

• 21

• 23

Tags

CCSS.4.OA.B.4

Select all composite numbers:

• 51

• 2

• 1

• 21

• 23

Tags

CCSS.4.OA.B.4

A number with exactly two factors is...

• a prime number

• a composite number

• a special number

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

The number 21 is ​ (a)   because it has ​ (b)  

• composite

• prime

• more than 1 factor pair

• exactly 1 factor pair

Tags

CCSS.4.OA.B.4

Sort the numbers

*Hint: use your prime numbers chart!

• 19

• Composite Number

• 0

• Prime Number

• 24

• Neither Prime nor Composite

Tags

CCSS.4.OA.B.4

The number 17 is ​ (a)   because it has ​ (b)  

• prime

• composite

• exactly 1 factor pair

• more than 1 factor pair

Tags

CCSS.4.OA.B.4

Are each of these numbers prime or composite?

• prime

• 7

• composite

• 3

• prime

• 15

• composite

• 10

• composite

• 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