271

This number is a prime.

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The longest of the three edges (271, 106, 103) of the smallest perfect parallelepiped. Note that the latter's shortest edge is also prime and, taken together with the middle edge, forms an emirp (106103). [Beedassy]

Submitted: 2010-11-25 16:36:55; Last Modified: 2018-12-23 03:28:11.