312

This number is a composite.

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312 is the average of a twin prime pair. Describe 312 to find another, i.e., 312 is 'one 3, one 1, one 2' or 131112. This is the smallest example. [Honaker]

Submitted: 2014-11-26 00:23:54; Last Modified: 2014-11-26 01:24:38.