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Prime-go-round (Posted on 2012-02-06) Difficulty: 3 of 5
For k=2,3,4,5,6 find an example (or prove absence) of a circular prime of k digits (i.e. a prime number that remains prime as its leftmost digit (Most Significant Digit) is moved in turn to the right hand side).

See The Solution Submitted by Ady TZIDON    
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  Subject Author Date
Near misses -- Nihil !xdog2012-02-07 20:02:26
Solutioncomputer solutionCharlie2012-02-06 16:50:13
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