22333...99989 (44-digits)

This number is a prime.

2233 3444455555 6666667777 7778888889 8999999989

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22333444455555666666777777788888898999999989 is the smallest prime number such that the digit d is present in it d-times, for d=2 to 9. [Rivera]

Submitted: 2013-11-22 21:00:50; Last Modified: 2020-07-08 22:16:32.