BARS::17 Miles From Why and 71 Miles From Gila Bend in Arizona

This road sign is on AZ Hwy-85 in Arizona.

The road sign says...

   +------------------+
   | Why           17 |
   | Gila Bend     71 |
   +------------------+
   the numbers are:  17   71

   AllPrimesRS:  17 and 71 are both numbers. In addition,
                 17 and 71 are a "reversible prime pair."

   rsAgeEval:  71 - 17 = 54
   * RoadHacker was 54 years young when he found this road sign.

   off-by-one rsCardinalityEval:  71 % 17 = 2+1
   * There are two numbers this road sign.

   From the BARSfuncLib...
   * mult_digits(n) = product of the digits of n 
     domain:  n must be a prime number
   * sum_digits(n) = sum the digits of n
     domain:  n must be a prime number
   * reverse_digits(n) = the digits of n reversed
   * domain: n must be a prime number

   BARSfunc math:  reverse_digits(17) = 71
                   reverse_digits(71) = 71

   BARSfunc rsCardinalityEval:  cuberoot(sum_digits(17)!/mult_digits(71)!) = 2
   BARSfunc off-by-one rsStateEval:  mult_digits(17) * mult_digits(71) = 48+1
   * Arizona was the 48th state admitted to the Union.

This road sign has me considering added the rsPresidentEval to the BARS rsEvals (road sign evaluations).


   rsPresidentEval:  avg(17, 71) = 44
   * Barack Obama was President when RoadHacker found this road sign.
   * Obama was the 44th President of the United States of America.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 20 May 2012

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This work is licensed under a Creative Commons Attribution 3.0 United States License.