Factors and Prime/Composite

Select all of the correct factor pairs of 48.

• x 48

• 2 x 25

• 3 x 16

• 6 x 8

• 4 x 15

A prime number is _____.

• a number that has only one factor.

• a number that has at least two factors.

• a number that has more than two factors.

• a number that has only two factors.

  (1 and itself)

Select all of the prime numbers.

• 2

• 11

• 13

• 9

• 15

What is a number that has more than 2 factors called?

• prime

• composite

• factor

• multiple

The number 11 is​ (a)   because it has ​ (b)  

• prime

• composite

• exactly 2 factors

• more than 2 factors

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

Are each of these numbers prime or composite?

• composite

• 15

• prime

• 3

• composite

• 7

• composite

• 10

• prime

• 12

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

• composite

• prime

• more than 2 factors

• exactly 2 factors

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

• prime

• composite

• exactly 1 factor pair

• more than 1 factor pair

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

• composite

• prime

• more than 1 factor pair

• exactly 1 factor pair