The book is now available! 11111...11111 (25-digits)
(another Prime Pages' Curiosity)
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                                                 11111 1111000100 0111111111
+ A palindromic prime taking the form of a lozenge:
         1 
        111 
       11111 
      0001000 
       11111 
        111 
         1
[Silva]




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