The book is now available! 774630686237
(another Prime Pages' Curiosity)
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                                                               77 4630686237
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The numbers pressed on a cell phone to type the word PRIME NUMBER. Note that 774630686237 and its reversal are both semiprimes. [Gudipati]


  Submitted: 2011-06-03 00:03:35;   Last Modified: 2011-08-30 21:08:22.

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