16777213
This number is a prime.
 
Probably the only emirp of the form n^n - 3 (n = 8).  [Firoozbakht]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean
This number is a prime.
 
Probably the only emirp of the form n^n - 3 (n = 8).  [Firoozbakht]