The book is now available! 753266429
(another Prime Pages' Curiosity)
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The center column of this 9-level palindromic
prime pyramid is the emirp 753266429.

There are 5 more 9-level palindromic prime pyramids like
this that contain a prime number (starting with '7')
down the center column.
Can you find them?
 7
757
77377
7772777
777767777
77777677777
7777774777777
777777727777777
77777777977777777
[Green]

 

  Submitted: 2010-04-12 15:19:32;   Last Modified: 2010-04-12 21:26:47.


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