2232232273

This number is a prime.

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The smallest prime-digit prime formed from a single-digit, a double-digit, a triple-digit and a quadruple-digit prime, i.e., 2, 23, 223, 2273. [Loungrides]

Submitted: 2012-08-24 13:01:17; Last Modified: 2018-02-23 16:05:27.