5693

This number is a prime.

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The smallest prime that can be expressed as sum of five primes, each of which is a concatenation of two double-digit primes: 1117, 1123, 1129, 1153, 1171. [Loungrides]

Submitted: 2013-09-05 10:35:30; Last Modified: 2018-03-22 11:51:36.