Friday, 26 February 2016

number theory - Project Euler problem #3 (how to do it by hand?)

Problem #3 in Project Euler:




What is the largest prime factor of the number 600851475143?




I want to solve this by hand. (I am doing this with all problems.) What techniques would allow me to figure this out? (Yes, I checked the prime factors up to 53, but I got quite tired.)

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