Project Euler

Problem: Largest Prime Factor

• The prime factors of 13195 are 5, 7, 13 and 29. The largest prime factor in this case is 29.
• What is the largest prime factor of the number 600851475143 ?

Instructions

• Code your procedural solution into the lib/largest_prime_factor.rb file.
• Code your object-oriented solution into the lib/oo_largest_prime_factor.rb file. Make sure that you set the largest prime factor equal to the number attribute of the LargestPrimeFactor class.
• Run learn until you get all of the RSpec tests to pass.

Source

• Project Euler - Problem 3

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