There are more than four: 105, 106, 108, 110, 111, 112, 114, 115, 116, 117, 118, 119.
100, 102, 104, 105
The four smallest three digit composite numbers are: 100, 102, 104, 105 with sum 411.
102 & 104
both are composite numbers
4, 6, 8, 9, 104, 6, 8, 9, 10
102 104 105 106 108
100, 102, 104, 105, 106, and 792 .
99, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114 (including 99 and 114)
100, 102, 104, 105, 106, 108, 110
102, 104, 105, 106, 108, 110, 111, 112, 114, 115, 116, 117, 118, 119, 120
They seem to mean that 97 is a prime number whereas the rest of them are composite numbers.
The numbers 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 115, 116, 117, 118, 119 and 120 are composite (including the boundaries).