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9 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 100000^9 - 9 and 100000^9 + 9 are primes. Note that 9 is the only known number with this property. [Firoozbakht]
Submitted: 2004-08-25 01:20:06; Last Modified: 2008-01-30 11:28:00.
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