This number is a prime.
Single Curio View: (Seek other curios for this number)It is possible to place 7 cigarettes in such a way that each touches the others if the length divided by the diameter of each is greater than or equal to 7*sqrt(3)/2. [Gardner]
Submitted: 2002-02-06 00:32:57; Last Modified: 2009-05-04 21:11:47.
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