Problem 7

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?

The solve this one, we should learn how to check whether a number is prime, can also refer to Problem 3

The whole code is as follows:

 import math

 def isPrime(data):

     i = 2

     while i <= math.sqrt(data):

         if data%i == 0:

             return False

         i += 1

     return True

 count = 10001

 i = 2

 while count > 0:

     if isPrime(i):

         count -= 1

     i += 1

 print(i-1)