This number is a prime.
Single Curio View: (Seek other curios for this number)The only known prime number which is a square when turned upside down (169) and another square when reversed (196). Note that 169 and 196 are the smallest consecutive squares using the same digits. [Capelle]
Submitted: 2007-02-21 10:11:21; Last Modified: 2008-05-25 20:12:04.
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