This chart shows all the composite numbers
between 1 and 100
4 6 8
9 10 12
14 15 16
18 20 21
22 24 25
26 27 28
30 32 33
34 35 36
38 39 40
42 44 45
46 48 49
50 51 52
54 55 56
57 58 60
62 63 64
65 66 68
69 70 72
74 75 76
77 78 80
81 82 84
85 86 87
88 90 91
92 93 94
95 96 98
99 100