Largest prime factor

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Problem:

What is the largest prime factor of the number 600851475143? 


Solution:


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n = 600851475143 
x = 2

while x * x <= n:
    while n % x == 0:
        if n == x:
            break
        n = n / x
    x = x + 1

print(n)

Note: This problem was taken from Project Euler (www.projecteuler.net).

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