37778931862957154241011

This number is a prime.

                                                   377 7893186295 7154241011

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The largest known Honaker prime, as of August 27, 2009. Note that 37778931862957154241011 is the 741263521140739969679th prime and each number contains the same sum of digits. Tomás Oliveira e Silva's computation of π(2⁷⁵) was used to achieve this result. See current record. [Andersen]