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Permanent link to this puzzle: mscroggs.co.uk/puzzles/advent2015/15

If the numbers 1 to 7 are arranged

**7,1,2,6,3,4,5**then each number is either larger than or a factor of the number before it.How many ways can the numbers 1 to 7 be arranged to that each number is either larger than or a factor of the number before it?

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puzzles about percentages, or a random puzzle.

puzzles about percentages, or a random puzzle.