The book is now available! 4632647
(another Prime Pages' Curiosity)
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4632647 is called a truncatable prime because each of its truncations (632647, 32647, 2647, 647, 47, and 7) are prime.

 

  Submitted: 1999-09-06 16:47:31;   Last Modified: 2008-01-30 11:28:00.



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