Prime pairs, 1 either side of 12, 18 and 30. The next number should be 43. These numbers are always of the form 6n -1 and 6n + 1. (In the example n = 2, 3, 5 and 7)
11 13 17 19
19,17,15,13,11,9
11+13+17+19= 60ANSWER: 60
They are 11, 13, 17 and 19
It is 15
11 13 17
I believe they are all Prime Numbers
11, 13, 17, and 19
11, 13, 17, 19
The prime numbers between 10 and 20 are 11, 13, 17, and 19.
11 13 15 17 19
The prime numbers after ten are: 11 13 17 19 23 29
prime numbers
11 13 17 19
The numbers 11, 13, 17, 19, 23 and 29 are prime.They are: 11 13 17 19 23 and 29
They are consecutive prime numbers 2 3 5 7 11 13 17 19 23 29 31 ..... etc
The prime numbers between 10 and 20 are 11, 13, 17, and 19.