12345...72373 (1011-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

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A titanic prime formed by concatenating the integers from 1 to 373 and then swapping the integers 12 and 144. [Rivera]

Submitted: 2020-06-13 13:47:25; Last Modified: 2020-06-13 13:48:34.