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531667127 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) The number of 21-digit palindromic primes ending with the digit 9, computed by Shyam Sunder Gupta (2009), is a 9-digit prime number. [Capelle]
Submitted: 2009-03-13 15:26:46; Last Modified: 2009-03-13 18:07:30.
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