753266429

This number is a prime.

Single Curio View: (Seek other curios for this number)

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

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Submitted: 2010-04-12 20:19:32; Last Modified: 2010-04-13 02:26:47.