Vilka är alla primtal mellan 1 och 100?

Vilka är alla primtal mellan 1 och 100?

Primtalen mellan 1 och 100 är: 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97. 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

Primtalen behöver inte faktorisering. Som eliminerar 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97. Resten är:

2 x 2 = 4
2 x 3 = 6
2 x 2 x 2 = 8
3 x 3 = 9
2 x 5 = 10
2 x 2 x 3 = 12
2 x 7 = 14
3 x 5 = 15
2 x 2 x 2 x 2 = 16
2 x 3 x 3 = 18
2 x 2 x 5 = 20
3 x 7 = 21
2 x 11 = 22
2 x 2 x 2 x 3 = 24
5 x 5 = 25
2 x 13 = 26
3 x 3 x 3 = 27
2 x 2 x 7 = 28
2 x 3 x 5 = 30
2 x 2 x 2 x 2 x 2 = 32
3 x 11 = 33
2 x 17 = 34
5 x 7 = 35
2 x 2 x 3 x 3 = 36
2 x 19 = 38
3 x 13 = 39
2 x 2 x 2 x 5 = 40
2 x 3 x 7 = 42
2 x 2 x 11 = 44
3 x 3 x 5 = 45
2 x 23 = 46
2 x 2 x 2 x 2 x 3 = 48
7 x 7 = 49
2 x 5 x 5 = 50
3 x 17 = 51
2 x 2 x 13 = 52
2 x 3 x 3 x 3 = 54
5 x 11 = 55
2 x 2 x 2 x 7 = 56
3 x 19 = 57
2 x 29 = 58
2 x 2 x 3 x 5 = 60
2 x 31 = 62
3 x 3 x 7 = 63
2 x 2 x 2 x 2 x 2 x 2 = 64
5 x 13 = 65
2 x 3 x 11 = 66
2 x 2 x 17 = 68
3 x 23 = 69
2 x 5 x 7 = 70
2 x 2 x 2 x 3 x 3 = 72
2 x 37 = 74
3 x 5 x 5 = 75
2 x 2 x 19 = 76
7 x 11 = 77
2 x 3 x 13 = 78
2 x 2 x 2 x 2 x 5 = 80
3 x 3 x 3 x 3 = 81
2 x 41 = 82
2 x 2 x 3 x 7 = 84
5 x 17 = 85
2 x 43 = 86
3 x 29 = 87
2 x 2 x 2 x 11 = 88
2 x 3 x 3 x 5 = 90
7 x 13 = 91
2 x 2 x 23 = 92
3 x 31 = 93
2 x 47 = 94
5 x 19 = 95
2 x 2 x 2 x 2 x 2 x 3 = 96
2 x 7 x 7 = 98
3 x 3 x 11 = 99