This number is a prime.

                                                           203580 2523820057

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The start of the smallest prime sextuplet such that the sum of any five is prime. Due to divisibility by small primes, there is no k from 7 to 50 for which there exists a prime k-tuplet such that the sum of any k-1 is prime. [Andersen]

Submitted: 2013-04-12 21:51:33;   Last Modified: 2014-08-30 10:16:45.
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