There are 16 such numbers.
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The composite numbers between 11 and 29 are 12,14,15,16,18,20,21,22,24,25,26,27 & 28.
11, 13, 17, 19, 23, 29 are the primes between 10 and 30 so the composite numbers are all the others. 12,14,15,16,18,20,21,22,24,25,26,27,28, and 30 are the composite numbers between 10 and 30.
29 is prime, all the others in the list are composite.
The numbers are 24, 25, 26, 27, 28 and their sum is 130
Prime numbers between 1 and 50 are: 2 3 5 7 11 13 17 19 23 29 31 37 41 43 and 47 So there are more composite numbers than prime numbers between 1 and 50