yes as they are not prime numbers
6, 14, 21, 42 are the composite factors of 42.
The composite factors of 63 are 9, 21 and 63.
The composite factors of 42 are: 6, 14, 21, 42.
composite numbers between 11 and 21:12 14 15 16 18
14 and 21
14 and 21
14 and 21
The composite factors of 294 are 6, 14, 21, 42, 49, 98, 147, 294
The composite factors of 126 are 6, 9, 14, 18, 21, 42, 63, 126
21 is composite.
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The composite factors from this list are 6, 14, 21, and 42.
The only composite factor of 21 is 21.