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plateau prime (another Prime Pages' Glossary entries) |
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Glossary:
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A plateau prime is a palindromic prime having all equal internal
digits and smaller matching end digits. E.g., 181, 1777771, 355555553,
and 5*(10141-1)/9 - 2*(10140+1).
Chris Caldwell © 1999-2008 (all rights reserved)
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