18537...46081 (35-digits)

This number is a prime.

18537 7518518501 8499261848 0031846081

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The smallest emirp formed by reverse concatenation of five consecutive triangular numbers: {1853775, 1851850, 1849926, 1848003, 1846081}. [Jha]

Submitted: 2018-05-10 12:32:42; Last Modified: 2018-05-10 14:16:24.