2187

This number is a composite.

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The prime to prime power 3^7 was proved by Peter Hegarty, Desmond MacHale to be the smallest order of a non-trivial odd order group which occurs as the full automorphism group of a finite group. [Post]

Submitted: 2009-05-09 01:23:44;   Last Modified: 2009-05-09 10:34:03.
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