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Prime Order (Posted on 2011-11-27) Difficulty: 4 of 5
The integers from 1 to N (N>1) can be arranged in an order such that the sum of every pair of consecutive numbers is a prime. For example, ( 4,1,2,3 ) OR (9, 8, 3, 4, 1, 2, 5, 6, 7, 10 ).
Prove it.       

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
Some ThoughtsSome thoughtsbroll2011-11-28 11:59:42
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