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Prime clock (Posted on 2004-08-01)

Given a clock, rearrange six consecutive numbers on its face, so the sum of every pair of adjacent numbers is a prime.

See The Solution Submitted by Federico Kereki

Rating: 3.7500 (8 votes)

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A question....

| Comment 8 of 17 |

Must the sum of the first with the last one be a prime?

If not I have the solution: 11 12 1 2 3 4

Posted by Isabel on 2004-08-02 03:57:55

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