30 lines
724 B
Python
30 lines
724 B
Python
#!/usr/bin/env python3
|
|
|
|
# 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?
|
|
|
|
from projecteuler import is_prime, timing
|
|
|
|
|
|
@timing
|
|
def p007() -> None:
|
|
count = 1
|
|
n = 1
|
|
|
|
# Brute force approach: start with count=1 and check every odd number
|
|
# (2 is the only even prime), if it's prime increment count, until the
|
|
# target prime is reached.
|
|
while count != 10001:
|
|
n = n + 2
|
|
# Use the function in projecteuler.py to check if a number is prime.
|
|
if is_prime(n):
|
|
count = count + 1
|
|
|
|
print('Project Euler, Problem 7')
|
|
print(f'Answer: {n}')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
p007()
|