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The smallest circular-digit prime formed by the concatenation of two consecutive multidigit numbers; when 0's are added between each number we get the smallest six-digit number with same property, 608609; then when the 60's are removed we get the smallest of all, 89. [Punches]

 

  Submitted: 2006-12-09 10:24:49;   Last Modified: 2009-04-30 19:53:03.



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