This number is a prime.

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The smallest odd-digit prime that contains all of the odd digits and whose the reversal is a 2-sphenic number, i.e., 137953=29*67*71. (An n-sphenic number is a sphenic number whose each of the prime factors consists of n digits). [Loungrides]

Submitted: 2015-05-02 14:11:34;   Last Modified: 2020-06-22 17:39:20.
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