10093
This number is a prime.
The Little Book of Big Primes (Springer-Verlag, 1991) by Paulo Ribenboim contains a short section called "Primes up to 10,000"---however, the list actually goes up to 10093.
(There is one curio for this number that has not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell