Migration complete - please let us know if anything isn't working.
This number is a composite.
184 = 23 * 23 (concatenation of the first two primes). [Sladcik]
The smallest number that can be written as q * pq + r * p r, where p, q and r are distinct primes (184 = 3 * 23 + 5 * 25). [Thoms]
2184 with the last digit removed is prime. [Blevins]
(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