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181 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) The 181-digit palindromic number made up of all 7's except for the center nut being 181 (7777...7718177...77777) is a palindromic prime with a palindromic prime decimal length. [Fougeron]
Submitted: 2001-10-02 20:45:39; Last Modified: 2009-03-13 21:41:17.
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