1. © T Madas

2. 12 2 6 2 3 3 1 12 =2 x 2 x 3 12 =2 x 3 Write these numbers as a product of prime factors 18 2 9 3 3 3 1 18 =2 x 3 2 24 2 12 2 6 2 3 24 =2 x 2 3 1 x 3 24 =2323 x 3 18 =2 x 3

3. © T Madas 20 2 10 2 5 5 1 20 =2 x 2 x 5 20 =2 x 5 Write these numbers as a product of prime factors 30 2 15 3 5 5 1 30 =2 x 3 x 5 36 2 18 2 9 3 3 36 =2 x 2 x 3 3 1 36 =2 x 3 2

4. © T Madas 45 5 9 3 3 3 1 45 =3 x 3 x 5 45 =3232 x 5 60 2 30 2 15 3 5 60 =2 x 2 x 3 72 2 36 2 18 2 9 72 =2 x 2 3 3 x 3 72 =2323 x 3 2 5 1 x 5 60 =2 x 3 x 5 3 1 x 3 Write these numbers as a product of prime factors

5. © T Madas 48 2 24 2 12 2 6 48 =2 x 2 48 =2424 x 3 Write these numbers as a product of prime factors 2 3 3 1 x 2 x 3 54 2 27 3 9 3 3 54 =2 x 3 3 1 54 =2 x 3 3 56 2 28 2 14 2 7 56 =2 x 2 7 1 x 7 56 =2323 x 7

6. © T Madas 84 2 42 2 21 3 7 84 =2 x 2 x 3 84 =2 x 3 Write these numbers as a product of prime factors 7 1 x 7 90 2 45 5 9 3 3 90 =2 x 3 3 1 x 5 90 =2 x 3 2 x 7 x 5 80 2 40 2 20 2 10 80 =2 x 2 2 5 80 =2424 x 5 5 1

7. © T Madas 100 2 50 2 25 5 5 100 =2 x 2 x 5 100 =2 x 5 2 Write these numbers as a product of prime factors 5 1 x 5 210 2 105 5 21 3 7 210 =2 x 3 x 5 7 1 x 7 108 2 54 2 27 3 9 108 =2 x 2 x 3 3 3 108 =2 x 3 3 3 1 x 3

8. © T Madas

9. 12 2 6 2 3 3 1 12 =2 x 2 x 3 12 =2 x 3 Write these numbers as a product of prime factors 18 2 9 3 3 3 1 24 2 12 2 6 2 3 24 =2 x 2 3 1 x 3 24 =2323 x 3 18 =2 x 3 2 18 =2 x 3

10. © T Madas 20 2 10 2 5 5 1 20 =2 x 2 x 5 20 =2 x 5 Write these numbers as a product of prime factors 30 2 15 3 5 5 1 30 =2 x 3 x 5 36 2 18 2 9 3 3 36 =2 x 2 x 3 3 1 36 =2 x 3 2

11. © T Madas 45 5 9 3 3 3 1 45 =3 x 3 x 5 45 =3232 x 5 60 2 30 2 15 3 5 60 =2 x 2 x 3 72 2 36 2 18 2 9 72 =2 x 2 3 3 x 3 72 =2323 x 3 2 5 1 x 5 60 =2 x 3 x 5 3 1 x 3 Write these numbers as a product of prime factors

12. © T Madas 48 2 24 2 12 2 6 48 =2 x 2 48 =2424 x 3 Write these numbers as a product of prime factors 2 3 3 1 x 2 x 3 54 2 27 3 9 3 3 54 =2 x 3 3 1 54 =2 x 3 3 56 2 28 2 14 2 7 56 =2 x 2 7 1 x 7 56 =2323 x 7

13. © T Madas 84 2 42 2 21 3 7 84 =2 x 2 x 3 84 =2 x 3 Write these numbers as a product of prime factors 7 1 x 7 90 2 45 5 9 3 3 90 =2 x 3 3 1 x 5 90 =2 x 3 2 x 7 x 5 80 2 40 2 20 2 10 80 =2 x 2 2 5 80 =2424 x 5 5 1

14. © T Madas 100 2 50 2 25 5 5 100 =2 x 2 x 5 100 =2 x 5 2 Write these numbers as a product of prime factors 5 1 x 5 210 2 105 5 21 3 7 210 =2 x 3 x 5 7 1 x 7 108 2 54 2 27 3 9 108 =2 x 2 x 3 3 3 108 =2 x 3 3 3 1 x 3

15. © T Madas