BARS::23 Miles to Ash Fork on Route 66 in Seligman, Arizona

This road sign is on eastbound Route 66 in Seligman, Arizona.

The road sign says...

   +----------------+
   | Ash Fork    23 |
   | Flagstaff   73 |
   +----------------+

   the numbers are:  23  73

   rsAgeEval:  73 - 23 = 50
   * RoadHacker was 50 years young when he found this sign.

   off-by-one-percent rsPiEval:
           73/23 = 3.17391304
              Pi = 3.14159265
      73/23 - Pi = 0.0323203899
      73/23 is 1.03% greater than Pi
      73/23 is 1.02% less than Pi

[side-bar] RoadHacker encountered this road sign at 4:24am while looking for coffee (un-successfully) in Seligman, Arizona. The road sign was found on 27 May 2008; RoadHacker's last day being 50 years young.

Update::2008.11.14

This BARS was updated because it was used as one of the BARS-of-the-Week for week 13 of the fall 2008 semester.

   observe...
      23 and 73 are both prime numbers
      23 and 73 are both right-truncatable because their
         right-most digits can be truncated and the resulting
         numbers (2 and 7) are also prime 
      23 and 73 are both left-truncatable because their
         left-most digits can be truncated and the resulting
         numbers (3 and 3) are also prime 
      73 is a "permutable prime" because reversing the
         digits results in another prime number (37)

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 28 May 2008
+ This was BAB #1591 and BARS #433.