91929...49259 (67-digits)

This number is a prime.

   9192939 4959697989 9910911912 9139149159 1691791891 9920921922 9239249259

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The largest prime less than a googol formed by concatenating in ascending order the first n consecutive numbers ending with 9 (n=26). The smallest such prime is 919. [Loungrides]