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18 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 18 is the common difference in the arithmetic progression formed by the 5th, 10th, and 15th primes. [Rupinski]
Submitted: 2002-09-08 21:26:56; Last Modified: 2008-01-30 11:28:00.
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