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20 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 20^20 - 11...1(20 ones) & 20 + 11...1(20 ones) are primes. [Firoozbakht]
Submitted: 2004-07-29 09:34:41; Last Modified: 2008-01-30 11:28:00.
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