66618109

This number is a prime.

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The smallest beast prime consisting of all the invertible digits whose inverted number is a 3-sphenic number, i.e., 60181999 = 191 x 487 x 647. [Loungrides]

Submitted: 2018-12-26 13:17:54; Last Modified: 2018-12-26 13:29:01.