209173

This number is a prime.

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The start of the longest known chain of super magic primes, i.e., with each of its subsets having a distinct prime average (209173, 322573, 536773, 1217893, 2484733), although the Green-Tao theorem predicts the inexistence of an upper bound to the length of such chains. [Beedassy]

Submitted: 2010-04-09 12:44:14;   Last Modified: 2020-01-19 15:18:39.
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