1. Prime and Composite Numbers

2. These are numbers that have only two factors – themselves and one. These are numbers that have only two 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=1,83 3= 1,3 17= 1,17 83=1,83 Prime Numbers

3. Composite Numbers Numbers that have more than two factors Numbers that have more than two factors An example of composite numbers would be: 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= 1,2,4,5,10,20 20= 1,2,4,5,10,20

4. Identify the type of number shown 15 15

5. Composite Number Composite Number 15= 15= 1,3,5,15 1,3,5,15

6. 96 96

7. Composite Number Composite Number 96 = 96 = 1,96 2,38 3,32 4,24 6,16 8,12, 1,96 2,38 3,32 4,24 6,16 8,12,

8. 47 47

9. Prime Number Prime Number 47 47 1, 47 1, 47

10. 93

11. Composite Number 93= 93= 1,93 3,31 1,93 3,31

12. 2 2

13. Prime Number Prime Number 2 is the only EVEN prime number 2 is the only EVEN prime number 2= 2= 2,1 2,1

14. 54 54

15. Composite Number Composite Number 54 = 54 = 1,54 2,27 3,18 6,9 1,54 2,27 3,18 6,9

16. 57 57

17. Composite Number Composite Number 57= 57= 1,57 3,19 1,57 3,19

18. 19 19

19. Prime Number Prime Number 19= 19= 1,19 1,19

20. Prime Numbers: Have only two factors -- itself and one 17 23 47 59 Prime Numbers: Have only two factors -- itself and one 17 23 47 59 Composite Numbers: have more than 2 factors: 22, 50, 88, 100 One is neither