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19 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 19 is the only prime p less than 30 that does not divide 30, where p + 30 is composite. [Axoy]
Submitted: 2004-09-01 16:42:19; Last Modified: 2008-01-30 11:28:00.
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