There is only one and it is 11
The sum of the prime numbers 2, 5, and 11 is 18.
There are two pairs of prime numbers that express 18 as the sum of two prime numbers: 7 + 11 = 18 and 5 + 13 = 18.
The prime numbers from 1 to 18 are 2, 3, 5, 7, 11, 13, and 17.
The prime numbers between 1 and 18 are: 2 3 5 7 11 13 17.
2+5+11= 18.
2, 5 and 11
53, 11, 97, 79 are prime.
13 and 5 11 and 7
Three. 11, 13 and 17
They are: 2+5+11 = 18
2, 5 and 11.
12, 14, 15, 16, and 18 are composite numbers 11, 13, 17, and 19 are prime numbers