The list of composite numbers between 21 and 50 includes 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50.
I don't know if you're including 21 and 50 or not. Add them up however you like.
composite numbers between 11 and 21:12 14 15 16 18
The composite numbers between 21 and 31 are: 21 22 24 25 26 27 28 30
21 and 32
2 composite numbers whose prime factorization have a sum of 10 are 30 (2+3+5=10) and 21 (3+7=10).
21/36 or 7/12 or 58.33...%
composite numbers between 11 and 21:12 14 15 16 18
The composite numbers between 21 and 31 are: 21 22 24 25 26 27 28 30
21 and 32
There are 3 composite numbers between 20 and 25. They are 21, 22, and 24.
The composite numbers between 20 and 50 are: 20 21 22 24 25 26 27 28 30 32 33 34 35 36 38 39 40 42 44 45 46 48 49 50 The sum of these numbers is 834.
2 composite numbers whose prime factorization have a sum of 10 are 30 (2+3+5=10) and 21 (3+7=10).
21/36 or 7/12 or 58.33...%
The composite numbers between 20 and 30 are 21, 22, 24, 25, 26, 27, and 28.
1,2,3,6,7,14,21 6+14+21 = 41
Add them up. 16, 18, 20, 21, 22, 24
The composite numbers between 20 and 25 are 21, 22, and 24. 23 is the only prime number between 20 and 25.
120