6918011
This number is a prime.
Just showing those entries submitted by 'Bajpai': (Click here to show all)
(6918011, 6918019): The first occurrence of invertible
prime pair of the form (p, p+2r) for r=4, containing all of
the invertible digits {0, 1, 6, 8, 9}. [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell