Prime and Composite Prime and Composite NumbersNumbers

These are numbers that have only two These are numbers that have only two factors – themselves and one.factors – themselves and one.

An example of Prime Numbers would be An example of Prime Numbers would be 3= 1,3 17= 1,17 83=1,833= 1,3 17= 1,17 83=1,83

Prime Numbers Prime Numbers

Composite NumbersComposite Numbers

Numbers that have more than two factorsNumbers that have more than two factors

and yes one is includedand yes one is included

An example of composite numbers would An example of composite numbers would be: 12 = 1,12 2,6 3,4be: 12 = 1,12 2,6 3,4

36= 1,2,3,4,6,9,12,18,36 36= 1,2,3,4,6,9,12,18,36 20= 1,2,4,5,10,2020= 1,2,4,5,10,20

Identify the type of number shownIdentify the type of number shown

15 15

Composite NumberComposite Number 15=15=

1,3,5,151,3,5,15

9696

Composite NumberComposite Number

96 =96 = 1,96 2,38 3,32 4,24 6,16 1,96 2,38 3,32 4,24 6,16

8,12,8,12,

4747

Prime NumberPrime Number 47471, 471, 47

9393

Composite NumberComposite Number

93=93=

1,93 3,311,93 3,31

22

Composite NumberComposite Number

2= 2=

2,12,1

5454

Composite NumberComposite Number

54 =54 =

1,54 2,27 3,18 6,91,54 2,27 3,18 6,9

5757

Composite NumberComposite Number 57=57=

1,57 3,191,57 3,19

1919

Prime NumberPrime Number

19=19=

1,191,19

Prime Numbers: Have only two factors -- Prime Numbers: Have only two factors -- itself and one 17 23 47 59itself and one 17 23 47 59

Composite Numbers: have more than 2 Composite Numbers: have more than 2 factors: 22, 50, 88, 100factors: 22, 50, 88, 100

One is neither One is neither