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Prime Ratio Possibility (Posted on 2015-09-11) Difficulty: 2 of 5
Is it possible to place 2015 different positive integers around a circle so that for any two adjacent numbers, the smaller integer always divides the larger integer and the ratio of the larger to the smaller is a prime number?

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No Solution Yet Submitted by K Sengupta    
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Hints/Tips methodology Comment 3 of 3 |

This and similar puzzles imply dependence on parity.

I've rated it D1 when it was reviewed just by virtue of trying to   solve it for 3 vs 4 numbers.

  Posted by Ady TZIDON on 2015-09-11 14:18:47
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