BARS::Off-By-One Three Square Numbered Highway Signs in Colorado

These highway signs were found near an I-25 entrance ramp located between Colorado Springs and Denver, Colorado.

The highways signs say...

   +-------+ +-----------+ +-------+
   | North | | CO Hwy-16 | | South |
   | I-25  | +-----------+ | I-25  |
   +-------+               +-------+

   the numbers are:  25  16   25

   off-by-one math:  25 / 25 = sqrt(sqrt(16)) - 1

   observe...
      25 / 25 = 1
      sqrt(16) = 4
      sqrt(4) = 2

   more off-by-one math:  25 / sqrt(25) = sqrt(16) + 1

   observe...
      sqrt(25) = 5
      25 / 5 = 5
      sqrt(16) = 4

   more off-by-one math:  sqrt(25 - 16)! = sqrt(25) + 1

   observe...
      25 - 16 = 9
      sqrt(9) = 3
      3! = 3 x 2 x 1 = 6
      sqrt(25) = 5

Creator: Gerald D. Thurman [gthurman@gmail.com]
Created: 21 May 2007

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This work is licensed under a Creative Commons License.