Let’s find factors of all numbers from 1 to 100 and check whether they are prime or not. Factors from 1 to 100 are provided here.

## Table of Factors of 1 to 100

Numbers | Factors | Prime Factors Form | Prime/Composite |

1 | 1 | – | Neither Prime nor composite |

2 | 1, 2 | 2 | Prime |

3 | 1, 3 | 3 | Prime |

4 | 1, 2, 4 | 2 x 2 | Composite |

5 | 1, 5 | 5 | Prime |

6 | 1, 2, 3, 6 | 2 x 3 | Composite |

7 | 1, 7 | 7 | Prime |

8 | 1, 2, 4, 8 | 2 x 2 x 2 | Composite |

9 | 1, 3, 9 | 3 x 3 | Composite |

10 | 1, 2, 5, 10 | 2 x 5 | Composite |

11 | 1, 11 | 11 | Prime |

12 | 1, 2, 3, 4, 6, 12 | 2 x 2 x 3 | Composite |

13 | 1, 13 | 13 | Prime |

14 | 1, 2, 7, 14 | 2 x 7 | Composite |

15 | 1, 3, 5, 15 | 3 x 5 | Composite |

16 | 1, 2, 4, 8, 16 | 2 x 2 x 2 x 2 | Composite |

17 | 1, 17 | 17 | Prime |

18 | 1, 2, 3, 6, 9, 18 | 2 x 3 x 3 | Composite |

19 | 1, 19 | 19 | Prime |

20 | 1, 2, 4, 5, 10, 20 | 2 x 2 x 5 | Composite |

21 | 1, 3, 7, 21 | 3 x 7 | Composite |

22 | 1, 2, 11, 22 | 2 x 11 | Composite |

23 | 1, 23 | 23 | Prime |

24 | 1, 2, 3, 4, 6, 8, 12, 24 | 2 x 2 x 2 x 3 | Composite |

25 | 1, 5, 25 | 5 x 5 | Composite |

26 | 1, 2, 13, 26 | 2 x 13 | Composite |

27 | 1, 3, 9, 27 | 3 x 3 x 3 | Composite |

28 | 1, 2, 4, 7, 14, 28 | 2 x 2 x 7 | Composite |

29 | 1, 29 | 29 | Prime |

30 | 1, 2, 3, 5, 6, 10, 15, 30 | 2 x 3 x 5 | Composite |

31 | 1, 31 | 31 | Prime |

32 | 1, 2, 4, 8, 16, 32 | 2 x 2 x 2 x 2 x 2 | Composite |

33 | 1, 3, 11, 33 | 3 x 11 | Composite |

34 | 1, 2, 17, 34 | 2 x 17 | Composite |

35 | 1, 5, 7, 35 | 5 x 7 | Composite |

36 | 1, 2, 3, 4, 6, 9, 12, 18, 36 | 2 x 2 x 3 x 3 | Composite |

37 | 1, 37 | 37 | Prime |

38 | 1, 2, 19, 38 | 2 x 19 | Composite |

39 | 1, 3, 13, 39 | 3 x 13 | Composite |

40 | 1, 2, 4, 5, 8, 10, 20, 40 | 2 x 2 x 2 x 5 | Composite |

41 | 1, 41 | 41 | Prime |

42 | 1, 2, 3, 6, 7, 14, 21, 42 | 2 x 3 x 7 | Composite |

43 | 1, 43 | 43 | Prime |

44 | 1, 2, 4, 11, 22, 44 | 2 x 2 x 11 | Composite |

45 | 1, 3, 5, 9, 15, 45 | 3 x 3 x 5 | Composite |

46 | 1, 2, 23, 46 | 2 x 23 | Composite |

47 | 1, 47 | 47 | Prime |

48 | 1, 2, 3, 4, 6, 8, 12, 16, 24, 48 | 2 x 2 x 2 x 2 x 3 | Composite |

49 | 1, 7, 49 | 7 x 7 | Composite |

50 | 1, 2, 5, 10, 25, 50 | 2 x 5 x 5 | Composite |

51 | 1, 3, 17, 51 | 3 x 17 | Composite |

52 | 1, 2, 4, 13, 26, 52 | 2 x 2 x 13 | Composite |

53 | 1, 53 | 53 | Prime |

54 | 1, 2, 3, 6, 9, 18, 27, 54 | 2 x 3 x 3 x 3 | Composite |

55 | 1, 5, 11, 55 | 5 x 11 | Composite |

56 | 1, 2, 4, 7, 8, 14, 28, 56 | 2 x 2 x 2 x 7 | Composite |

57 | 1, 3, 19, 57 | 3 x 19 | Composite |

58 | 1, 2, 29, 58 | 2 x 29 | Composite |

59 | 1, 59 | 59 | Prime |

60 | 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 | 2 x 2 x 3 x 5 | Composite |

61 | 1, 61 | 61 | Prime |

62 | 1, 2, 31, 62 | 2 x 31 | Composite |

63 | 1, 3, 7, 9, 21, 63 | 3 x 3 x 7 | Composite |

64 | 1, 2, 4, 8, 16, 32, 64 | 2 x 2 x 2 x 2 x 2 x 2 | Composite |

65 | 1, 5, 13, 65 | 5 x 13 | Composite |

66 | 1, 2, 3, 6, 11, 22, 33, 66 | 2 x 3 x 11 | Composite |

67 | 1, 67 | 67 | Prime |

68 | 1, 2, 4, 17, 34, 68 | 2 x 2 x 17 | Composite |

69 | 1, 3, 23, 69 | 3 x 23 | Composite |

70 | 1, 2, 5, 7, 10, 14, 35, 70 | 2 x 5 x 7 | Composite |

71 | 1, 71 | 71 | Prime |

72 | 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 | 2 x 2 x 2 x 3 x 3 | Composite |

73 | 1, 73 | 73 | Prime |

74 | 1, 2, 37, 74 | 2 x 37 | Composite |

75 | 1, 3, 5, 15, 25, 75 | 3 x 5 x 5 | Composite |

76 | 1, 2, 4, 19, 38, 76 | 2 x 2 x 19 | Composite |

77 | 1, 7, 11, 77 | 7 x 11 | Composite |

78 | 1, 2, 3, 6, 13, 26, 39, 78 | 2 x 3 x 13 | Composite |

79 | 1, 79 | 79 | Prime |

80 | 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 | 2 x 2 x 2 x 2 x 5 | Composite |

81 | 1, 3, 9, 27, 81 | 3 x 3 x 3 x 3 | Composite |

82 | 1, 2, 41, 82 | 2 x 41 | Composite |

83 | 1, 83 | 83 | Prime |

84 | 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 | 2 x 2 x 3 x 7 | Composite |

85 | 1, 5, 17, 85 | 5 x 17 | Composite |

86 | 1, 2, 43, 86 | 2 x 43 | Composite |

87 | 1, 3, 29, 87 | 3 x 29 | Composite |

88 | 1, 2, 4, 8, 11, 22, 44, 88 | 2 x 2 x 2 x 11 | Composite |

89 | 1, 89 | 89 | Prime |

90 | 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90 | 2 x 3 x 3 x 5 | Composite |

91 | 1, 7, 13, 91 | 7 x 13 | Composite |

92 | 1, 2, 4, 23, 46, 92 | 2 x 2 x 23 | Composite |

93 | 1, 3, 31, 93 | 3 x 31 | Composite |

94 | 1, 2, 47, 94 | 2 x 47 | Composite |

95 | 1, 5, 19, 95 | 5 x 19 | Composite |

96 | 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96 | 2 x 2 x 2 x 2 x 2 x 3 | Composite |

97 | 1, 97 | 97 | Prime |

98 | 1, 2, 7, 14, 49, 98 | 2 x 7 x 7 | Composite |

99 | 1, 3, 9, 11, 33, 99 | 3 x 3 x 11 | Composite |

100 | 1, 2, 4, 5, 10, 20, 25, 50, 100 | 2 x 2 x 5 x 5 | Composite |

**Questions on Prime and Composite Numbers **

**Q.True or False: All prime numbers are odd.**

False as 2 is only prime number which is even.

**Q.What is the smallest prime number?**

2

**Q.True or False: All even numbers greater than 2 are composite.**

Statament is True as all even numbers are divisible by 2.

### What are the factors of 87?

1, 3, 29, 87 are the factors of 87

### What are the factors of 89?

Since 89 is a prime number; it has only two factors, i.e. **1 and 89**.

### What are the factors of 96?

The factors of 96 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, and 96.

### What are the factors of 84?

The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42 and 84. There are 12 factors of 84.

### What are the factors of 100?

The factors of 100 are **1, 2, 4, 5, 10, 20, 25, 50, and 100**.

### What are the even prime number?

2 is the only prime number which is even.