99999...66333 (44-digits)

This number is a prime.

                            9999 9999988888 8887777777 5555544442 2666666333

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The largest prime formed by concatenating n repdigit numbers using d times each digit d, (n=8). [Loungrides]

Submitted: 2016-08-08 10:16:16;   Last Modified: 2018-03-03 13:24:14.
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