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73 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) Starting with 73, you must repeatedly double and add 1 a palindromic number of times before a prime is reached. [Roonguthai]
Submitted: 1999-09-02 18:40:00; Last Modified: 2011-08-01 12:35:01.
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