! Copyright (c) 2007 Aaron Schaefer. ! See http://factorcode.org/license.txt for BSD license. USING: math.primes.factors sequences project-euler.common ; IN: project-euler.003 ! http://projecteuler.net/index.php?section=problems&id=3 ! DESCRIPTION ! ----------- ! The prime factors of 13195 are 5, 7, 13 and 29. ! What is the largest prime factor of the number 600851475143 ? ! SOLUTION ! -------- : euler003 ( -- answer ) 600851475143 factors supremum ; ! [ euler003 ] 100 ave-time ! 1 ms ave run time - 0.49 SD (100 trials) SOLUTION: euler003