6880691
This number is a prime.
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The smallest invertible prime containing all the invertible
digits {0, 1, 6, 8, 9} that is the first member of the
smallest prime quadruple in the 6p+1 progression: (6880691,
41284147, 247704883, 1486229299). [Bajpai]
Submitted: 2018-09-25 15:08:23; Last Modified: 2020-06-16 04:00:11.
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