1. Prime Factor Tree next 6.NS#4 © Math As A Second Language All Rights Reserved

2. next Directions for the Teacher Review Prime Factorization with your students. Have students find the prime factors of the given values on a piece of paper.

3. © Math As A Second Language All Rights Reserved next Directions for the Teacher Check the students work by clicking the mouse when next appears. Remind students that it is possible to start with different factors, but there is only one set of prime factors.

4. 18 3×6 3×3×2 next The prime factors for 18 are… 3 × 3 × 2 next © Math As A Second Language All Rights Reserved

5. 15 3×5 next The prime factors for 15 are… 3 × 5 © Math As A Second Language All Rights Reserved

6. 24 6×4 3×2×2×2 next The prime factors for 24 are… 3 × 2 × 2 × 2 next © Math As A Second Language All Rights Reserved

7. 36 9×4 3×3×2×2 next The prime factors for 36 are… 3 × 3 × 2 × 2 next © Math As A Second Language All Rights Reserved

8. 24 3× 3×2× next The prime factors for 24 are… 3 × 2 × 2 × 2 next 3 ×2× 2 × 8 4 2 © Math As A Second Language All Rights Reserved

9. next Directions for the Teacher On the following slides the students may click on the textbox and then type in their answer. Click outside the box and then click again to proceed each time next appears.

10. 16 4× 2×2×× next The prime factors for 16 are… 2 × 2 × 2 × 2 next © Math As A Second Language All Rights Reserved

11. 18 2× 2×3× next The prime factors for 18 are… 2 × 3 × 3 next © Math As A Second Language All Rights Reserved

12. 27 3× 3×3× next The prime factors for 27 are… 3 × 3 × 3 next © Math As A Second Language All Rights Reserved

13. 81 9× 3×3×× next The prime factors for 81 are… 3 × 3 × 3 × 3 next © Math As A Second Language All Rights Reserved

14. 42 7× 7×3× next The prime factors for 42 are… 7 × 3 × 2 next © Math As A Second Language All Rights Reserved

15. 54 6× 2×3×× next The prime factors for 54 are… 2 × 3 × 3 × 3 next © Math As A Second Language All Rights Reserved

16. 72 9× 3 × 2× next The prime factors for 40 are… 3 × 3 × 2 × 2 × 2 next 3×2×2 × × 3 × © Math As A Second Language All Rights Reserved

17. 45 5× 5×3× next The prime factors for 45 are… 5 × 3 × 3 next © Math As A Second Language All Rights Reserved

18. 40 5× 5×2× next The prime factors for 40 are… 5 × 2 × 2 × 2 next 5 ×2× 2 × © Math As A Second Language All Rights Reserved

19. 60 6× 2×2×× next The prime factors for 54 are… 2 × 3 × 2 × 5 next

20. 48 6× 3 × 2× next The prime factors for 40 are… 3 × 2 × 2 × 2 × 2 next 3×2×2 × × 2 × © Math As A Second Language All Rights Reserved

21. 63 7× 7×3× next The prime factors for 45 are… 7 × 3 × 3 next © Math As A Second Language All Rights Reserved