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6 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 6 is probably the only even number n such that both numbers n^n - (n+1) and n^n + (n+1) are primes. [Firoozbakht]
Submitted: 2009-06-13 21:40:25; Last Modified: 2009-06-13 21:51:05.
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