Problem 3 : Largest prime factor
Problem Statement
The prime factors of 13195 are 5, 7, 13 and 29.
What is the largest prime factor of the number 600851475143 ?
Solution
n = 600851475143
l=[]
i = 2
while i * i <= n:
if n % i:
i += 1
else:
n //= i
print(n)
Output
6857