A set of first six positive prime numbers

2 answers

You just have to list the first six positive prime numbers?
I assume you know what primes are. They have no other factors than 1 and themselves.
For example, 2 = 1*2 so it is prime
3 = 1*3 so it is prime
4 = 1*4 or 2*2 so it is not prime
The set of the first two primes is {2,3}
Now you have the set of the first two primes, so go on until you have six of them.