6553
This number is a prime.
The smaller in the only pair of primes of form (3^n-n, 3^n+n) for n a composite, (n=8). [Loungrides]
(There are 2 curios for this number that have not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell