25263...79193 (48-digits)

This number is a prime.

25263334 3538394649 5155575862 6569747782 8586879193

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The largest prime formed by concatenating in order successive two-digit semiprimes. [Gupta]

Submitted: 2019-11-06 00:04:06; Last Modified: 2020-06-13 12:57:42.