6880691
This number is a prime.
Just showing those entries submitted by 'Bajpai': (Click here to show all)
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]
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