200
This number is a composite.
Single Curio View: (Seek other curios for this number)
The smallest number which cannot be changed into a prime by altering a digit. [Sierpinski]
Submitted: 1999-09-02 23:40:00; Last Modified: 2016-08-30 02:15:33.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell