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512 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 512 = 2^9. Both 2^9 +/- 9^2 are prime. This is the smallest number of the form 2^n such that both 2^n +/- n^2 are prime. [Astle]
Submitted: 2004-09-02 15:02:40; Last Modified: 2008-01-30 11:28:00.
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