71~100的因数有多少

霍仙姑2023-04-27  17

71的因数:1,71;

72的因数:1,2,3,4,6,8,9,12,18,24,36,72;

73的因数:1,73;

74的因数:1,2,37,74;

75的因数:1,3,5,15,25,75;

76的因数:1,2,4,19,38,76;

77的因数:1,7,11,77;

78的因数:1,2,3,6,13,26,39,78;

79的因数:1,79;

80的因数:1,2,4,5,8,10,16,20,40,80;

81的因数:1,3,9,27,81;

82的因数:1,2,41,82;

83的因数:1,83;

84的因数:1,2,4,7,3,12,21,28,42,84;

85的因数:1,5,17,85;

86的因数:1,2,43,86;

87的因数:1,3,29,87;

88的因数:1,2,4,8,11,22,44,88;

89的因数:1,89;

90的因数:1,2,3,5,9,10,18,30,45,90;

91的因数:1,7,13,91;

92的因数:1,2,4,23,46,92;

93的因数:1,3,31,93;

94的因数:1,2,47,94;

95的因数:1,5,19,95;

96的因数:1,2,3,4,6,8,12,16,24,32,48,96;

97的因数:1,97;

98的因数:1,2,7,14,49,98;

99的因数:1,3,9,11,33,99;

100的因数:1,2,4,5,10,20,25,50,100。

在小学数学里,两个正整数相乘,那么这两个数都叫做积的因数,或称为约数。

事实上因数一般定义在整数上:设A为整数,B为非零整数,若存在整数Q,使得A=QB,则称B是A的因数,记作B|A。但是也有的作者不要求B≠0。

1:1

2:1,2

3:1,3

4:1,2,4

5:1,5

6:1,2,3,6

7:1,7

8:1,2,4,8

9:1,3,9

10:1,2,5,10

11:1,11

12:1,2,3,4,6,12

13:1,13

14:1,2,7,14

15:1,3,5,15

16:1,2,4,8,16

17:1,17

18:1,2,3,6,9,18

19:1,19

20:1,2,4,5,10,20

21:1,3,7,21

22:1,2,11,22

23:1,23

24:1,2,3,4,6,8,12,24

25:1,5,25

26:1,2,13,26

27:1,3,9,27

28:1,2,4,7,14,28

29:1,29

30:1,2,3,5,6,10,15,30

31:1,31

32:1,2,4,8,16,32

33:1,3,11,33

34:1,2,17,34

35:1,5,7,35

36:1,2,3,4,6,9,12,18,36

37:1,37

38:1,2,19,38

39:1,3,13,39

40:1,2,4,5,8,10,20,40

41:1,41

42:1,2,3,6,7,14,21,42

43:1,43

44:1,2,4,11,22,44

45:1,3,5,9,15,45

46:1,2,23,46

47:1,47

48:1,2,3,4,6,8,12,16,24,48

49:1,7,49

50:1,2,5,10,25,50

51:1,3,17,51

52:1,2,4,13,26,52

53:1,53

54:1,2,3,6,9,18,27,54

55:1,5,11,55

56:1,2,4,7,8,14,28,56

57:1,3,19,57

58:1,2,29,58

59:1,59

60:1,2,3,4,5,6,10,12,15,20,30,60

61:1,61

62:1,2,31,62

63:1,3,7,9,21,63

64:1,2,4,8,16,32,64

65:1,5,13,65

66:1,2,3,6,11,22,33,66

67:1,67

68:1,2,4,17,34,68

69:1,3,23,69

70:1,2,5,7,10,14,35,70

71:1,71

72:1,2,3,4,6,8,9,12,18,24,36,72

73:1,73

74:1,2,37,74

75:1,3,5,15,25,75

76:1,2,4,19,38,76

77:1,7,11,77

78:1,2,3,6,13,26,39,78

79:1,79

80:1,2,4,5,8,10,16,20,40,80

81:1,3,9,27,81

82:1,2,41,82

83:1,83

84:1,2,3,4,6,7,12,14,21,28,42,84

85:1,5,17,85

86:1,2,43,86

87:1,3,29,87

88:1,2,4,8,11,22,44,88

89:1,89

90:1,2,3,5,6,9,10,15,18,30,45,90

91:1,7,13,91

92:1,2,4,23,46,92

93:1,3,31,93

94:1,2,47,94

95:1,5,19,95

96:1,2,3,4,6,8,12,16,24,32,48,96

97:1,97

98:1,2,7,14,49,98

99:1,3,9,11,33,99

100:1,2,4,5,10,20,25,50,100

50的因数:1,50,2,25,5,10

51的因数:1和51,3和17

52的因数:1和52,2和26,4和13

53的因素:1和53

54的因数:1和54,2和27,3和18,6和9

55的因数:1和55,5和11

56的因数:1和56,2和28,4和14,8和7

57的因数:1和57,3和19

58的因数:1和58,2和29

59的因数:1和59

因数,数学名词。

假如ab=c(a、b、c都是整数),那么我们称a和b就是c的因数。需要注意的是,唯有被除数,除数,商皆为整数,余数为零时,此关系才成立。

反过来说,我们称c为a、b的倍数。在研究因数和倍数时,不考虑0。

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