13610...04137 (113-digits)

This number is a prime.

136 1015212836 4555667891 1051201361 5317119021
0231253276 3003253513 7840643546 5496528561 5956306667 0374178082 0861904137

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The concatenation of the first 43 triangular numbers plus the 43rd prime, is prime. [Earls]

Submitted: 2002-11-01 13:40:59; Last Modified: 2008-01-30 17:28:00.