1344409044431

This number is a prime.

                                                              134 4409044431

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Describing 1344409044431 and repeating the process with each new term produces four more primes, i.e., one 1, one 3, three 4's, one 0, one 9, one 0, three 4's, one 3, one 1, generates 111334101910341311, etc. [Mosconi]