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421 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) A vigesimal repunit: 400 + 20 + 1 = 20^2 + 20^1 + 20^0 = 111_20. [McCandless]
Submitted: 2009-09-15 01:35:46; Last Modified: 2009-09-15 05:47:46.
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