35 lines
635 B
Python
35 lines
635 B
Python
#!/usr/bin/env python
|
|
"""
|
|
Created on 18 Mar 2017
|
|
|
|
@author: David Doblas Jiménez
|
|
@email: daviddoji@pm.me
|
|
|
|
Solution for problem 3 of Project Euler
|
|
https://projecteuler.net/problem=3
|
|
"""
|
|
|
|
from utils import timeit
|
|
|
|
|
|
@timeit("Problem 3")
|
|
def compute():
|
|
"""
|
|
The prime factors of 13195 are 5, 7, 13 and 29.
|
|
|
|
What is the largest prime factor of the number 600851475143?
|
|
"""
|
|
|
|
ans = 600851475143
|
|
factor = 2
|
|
while factor * factor < ans:
|
|
while ans % factor == 0:
|
|
ans = ans // factor
|
|
factor += 1
|
|
|
|
return ans
|
|
|
|
|
|
if __name__ == "__main__":
|
|
print(f"Result for problem 3 is {compute()}")
|