1. 36 / \ 4 x 9 / \ / \ 2 x 2 x 3 x 3 = 2 2 x 3 2 by D. Fisher

2. What are the prime factors of 4? 2 x 2 = 2 2

3. What are the prime factors of 6? 2 x 3

4. What are the prime factors of 8? 2 x 2 x 2 = 2 3

5. What are the prime factors of 9? 3 x 3 = 3 2

6. What are the prime factors of 10? 2 x 5

7. What are the prime factors of 12? 2 x 2 x 3 = 2 2 x 3

8. What are the prime factors of 14? 2 x 7

9. What are the prime factors of 15? 3 x 5

10. What are the prime factors of 16? 2 x 2 x 2 x 2 = 2 4

11. What are the prime factors of 18? 2 x 3 x 3 = 2 x 3 2

12. What are the prime factors of 20? 2 x 2 x 5 = 2 2 x 5

13. What are the prime factors of 21? 3 x 7

14. What are the prime factors of 22? 2 x 11

15. What are the prime factors of 24? 2 x 2 x 2 x 3 = 2 3 x 3

16. What are the prime factors of 25? 5 x 5 = 5 2

17. What are the prime factors of 26? 2 x 13

18. What are the prime factors of 27? 3 x 3 x 3 = 3 3

19. What are the prime factors of 28? 2 x 2 x 7 = 2 2 x 7

20. What are the prime factors of 30? 2 x 3 x 5

21. What are the prime factors of 32? 2 x 2 x 2 x 2 x 2 = 2 5

22. What are the prime factors of 33? 3 x 11

23. What are the prime factors of 34? 2 x 17

24. What are the prime factors of 35? 5 x 7

25. What are the prime factors of 36? 2 x 2 x 3 x 3 = 2 2 x 3 2

26. What are the prime factors of 38? 2 x 19

27. What are the prime factors of 39? 3 x 13

28. What are the prime factors of 40? 2 x 2 x 2 x 5 = 2 3 x 5

29. What are the prime factors of 42? 2 x 3 x 7

30. What are the prime factors of 44? 2 x 2 x 11 = 2 2 x 11

31. What are the prime factors of 45? 3 x 3 x 5 = 3 2 x 5

32. What are the prime factors of 46? 2 x 23

33. What are the prime factors of 48? 2 x 2 x 2 x 2 x 3 = 2 4 x 3

34. What are the prime factors of 49? 7 x 7 = 7 2

35. What are the prime factors of 50? 2 x 5 x 5 = 2 x 5 2

36. What are the prime factors of 51? 3 x 17

37. What are the prime factors of 52? 2 x 2 x 13 = 2 2 x 13

38. What are the prime factors of 54? 2 x 3 x 3 x 3 = 2 x 3 3

39. What are the prime factors of 55? 5 x 11

40. What are the prime factors of 56? 2 x 2 x 2 x 7 = 2 3 x 7

41. What are the prime factors of 57? 3 x 19

42. What are the prime factors of 58? 2 x 29

43. What are the prime factors of 60? 2 x 2 x 3 x 5 = 2 2 x 3 x 5

44. What are the prime factors of 62? 2 x 31

45. What are the prime factors of 63? 3 x 3 x 7 = 3 2 x 7

46. What are the prime factors of 64? 2 x 2 x 2 x 2 x 2 x 2 = 2 6

47. What are the prime factors of 65? 5 x 13

48. What are the prime factors of 66? 2 x 3 x 11

49. What are the prime factors of 68? 2 x 2 x 17 = 2 2 x 17

50. What are the prime factors of 69? 3 x 23

51. What are the prime factors of 70? 2 x 5 x 7

52. What are the prime factors of 72? 2 x 2 x 2 x 3 x 3 = 2 3 x 3 2

53. What are the prime factors of 74? 2 x 37

54. What are the prime factors of 75? 3 x 5 x 5 = 3 x 5 2

55. What are the prime factors of 76? 2 x 2 x 19 = 2 2 x 19

56. What are the prime factors of 77? 7 x 11

57. What are the prime factors of 78? 2 x 3 x 13

58. What are the prime factors of 80? 2 x 2 x 2 x 2 x 5 = 2 4 x 5

59. What are the prime factors of 81? 3 x 3 x 3 x 3 = 3 4

60. What are the prime factors of 82? 2 x 41

61. What are the prime factors of 84? 2 x 2 x 3 x 7 = 2 2 x 3 x 7

62. What are the prime factors of 85? 5 x 17

63. What are the prime factors of 86? 2 x 43

64. What are the prime factors of 87? 3 x 29

65. What are the prime factors of 88? 2 x 2 x 2 x 11 = 2 3 x 11

66. What are the prime factors of 90? 2 x 3 x 3 x 5 = 2 x 3 2 x 5

67. What are the prime factors of 91? 7 x 13

68. What are the prime factors of 93? 3 x 31

69. What are the prime factors of 94? 2 x 47

70. What are the prime factors of 95? 5 x 19

71. What are the prime factors of 96? 2 x 2 x 2 x 2 x 2 x 3 = 2 5 x 3

72. What are the prime factors of 98? 2 x 7 x 7 = 2 x 7 2

73. What are the prime factors of 99? 3 x 3 x 11 = 3 2 x 11

74. What are the prime factors of 100? 2 x 2 x 5 x 5 = 2 2 x 5 2

75. Wow!