18060109
This number is a prime.
Single Curio View: (Seek other curios for this number)
The smallest invertible prime p containing all of the
invertible digits {0, 1, 6, 8, 9} such that (p^n + k) is an
emirp, where k is an integer formed by concatenating in
ascending order the first n digits, n times each of them,
(case n=6), i.e., 1061689^6 +
111111222222333333444444555555666666. [Bajpai]
Submitted: 2020-05-21 19:10:10; Last Modified: 2020-05-21 21:15:34.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell