composite numbers between 11 and 21:12 14 15 16 18
The composite numbers between 11 and 19 are: 12 14 15 16 18 The other numbers, 11, 13, 17, and 19, are all prime.
13, 15
39
15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.
The composite numbers between 11 and 29 are 12,14,15,16,18,20,21,22,24,25,26,27 & 28.
composite numbers between 11 and 21:12 14 15 16 18
The composite numbers between 11 and 19 are: 12 14 15 16 18 The other numbers, 11, 13, 17, and 19, are all prime.
The composite numbers between 11 and 19 are 12, 14, 15, 16 and 18
All numbers other than 11, 13 ,17, 19 ,23,29, 31 are composite numbers. eg 10,12,14,15, are composite numbers.
13, 15
39
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.
11 composite 8 prime 1 neither
Their sum is 37.
Between 11 and 21: 12, 14, 15, 16, 18 and 20.
15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.