27 lines
660 B
Factor
27 lines
660 B
Factor
! Copyright (c) 2007, 2009 Aaron Schaefer.
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! See http://factorcode.org/license.txt for BSD license.
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USING: math math.functions math.ranges project-euler.common sequences ;
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IN: project-euler.005
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! http://projecteuler.net/index.php?section=problems&id=5
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! DESCRIPTION
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! -----------
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! 2520 is the smallest number that can be divided by each of the numbers from 1
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! to 10 without any remainder.
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! What is the smallest number that is evenly divisible by all of the numbers from 1 to 20?
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! SOLUTION
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! --------
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: euler005 ( -- answer )
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20 [1,b] 1 [ lcm ] reduce ;
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! [ euler005 ] 100 ave-time
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! 0 ms ave run time - 0.14 SD (100 trials)
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SOLUTION: euler005
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