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Composite number
A composite number is a positive integer that has at least one positive divisor other than one or the number itself.
Explanation
Any integer greater than 1 that is not a prime number, is a composite number. The composite numbers under hundred are uncolored
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
The colored numbers are prime numbers, with the exception of 1. The first fifty composite numbers are also
4
6
8
9
10
12
14
15
16
1820
21
22
24
25
26
27
28
30
3233
34
35
36
38
39
40
42
44
4546
48
49
50
51
52
54
55
56
5758
60
62
63
64
65
66
68
69
70