37311...73173 (131-digits)

This number is a prime.

3 7311278191 1310715242 8721474836 4723058430 0921369395 1618970019
6426901374 4956211123 0584300921 3693951214 7483647524 2871310718 1911273173

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Concatenation of the first ten Mersenne primes (from 3 to 618970019642690137449562111 and down to 3 again) is the smallest such prime greater than a googol. [Bajpai]

Submitted: 2019-02-21 19:54:21; Last Modified: 2020-06-18 14:50:34.