4

This number is a composite.

Single Curio View: (Seek other curios for this number)

The following cryptarithm utilizes the first 4 prime digits (2, 3, 5, & 7):

        * * *
       x  * *
      ---------
      * * * *
    * * * *
    -----------
    * * * * *

There is only one solution. [Mensa]

Submitted: 1999-09-02 23:40:00; Last Modified: 2008-01-30 17:28:00.