Project Euler
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http://projecteuler.net/  


Colin Hughes  
Browse hundreds of challenging problems that require mathematical insights as well as computer and programming skills to solve. Popular puzzles include "Add all the natural numbers below one thousand that are multiples of 3 or 5," "By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the evenvalued terms," "Find the largest prime factor of a composite number," and "What is the difference between the sum of the squares and the square of the sums?" Login to submit your solutions. Project Euler grew from a subsection of Hughes' MathsChallenge.net.  


Levels:  High School (912), College 
Languages:  English 
Resource Types:  Problems/Puzzles, InternetBased Projects, Recreations 
Math Topics:  Number Theory, Computer Science 
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