! Copyright (C) 2018 John Benediktsson
-! See http://factorcode.org/license.txt for BSD license
+! See https://factorcode.org/license.txt for BSD license
USING: backtrack backtrack.private combinators.short-circuit
kernel math math.functions math.primes
IN: project-euler.060
-! http://projecteuler.net/problem=60
+! https://projecteuler.net/problem=60
! DESCRIPTION
! -----------