Factors Multiple Prime and Composite

List the first 5 MULTIPLES of 3

• 3, 6 10, 15, 20

• 1, 3, 2, 6, 4

• 3, 6, 9, 12, 15

• 6, 9, 12, 15, 18

Which is a FACTOR of 15?

• 2

• 3

• 4

• 6

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)

Which number is a factor of 56?

• 5

• 9

• 4

• 3

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

• composite

• prime

• more than 1 factor pair

• exactly 1 factor pair

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

• prime

• composite

• exactly 2 factors

• more than 2 factors

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

• prime

• composite

• exactly 1 factor pair

• more than 1 factor pair

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

• composite

• prime

• more than 2 factors

• exactly 2 factors

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

• 2

• 4

• 1

• exactly one factor pair

• more than 2 factors

• exactly 1 factor

Are each of these numbers prime or composite?

• composite

• 15

• prime

• 7

• composite

• 3

• prime

• 10

• composite

• 12