By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.

What is the 10 001st prime number?

http://projecteuler.net/problem=7

highlight below for my solution:

```
#using a prime number set datastructure - https://gist.github.com/aausch/6709819
p = PrimeSet()
i = 10001
while (len(p)<10001):
i in p
i += i
print sorted(list(p))[10000]
```

(see also my solution to problem #5)

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