476183

This number is a prime.

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The smallest prime concatenated from three double-digit primes such that the sum and the difference of digits of each of them are prime. Note that 47+61+83=191 is also a prime. [Loungrides]

Submitted: 2013-09-28 09:58:05;   Last Modified: 2018-03-22 11:52:27.
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