56114...70967 (24-digits)

This number is a prime.

                                                  5611 4264857870 1032870967

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The least prime factor of the number formed from the concatenation of the first 43 semiprimes (i.e., 469101415...121122123129). [Sumpeloh]

Submitted: 2019-01-30 14:44:08;   Last Modified: 2019-01-30 15:17:04.
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