BARS::7 Miles East of Holbrook on I-40 in Arizona

RoadHacker saw a Pi road sign while driving on westbound I-40 in Arizona. He was not able to get a picture.

The road sign says...

+--------------------+
| AZ Highway-77    3 |
| Holbrook         7 |
| Flagstaff      102 |
+--------------------+
   the numbers are:  77  3  7  102

   the number system math is:  77 / 7 = 1023

   rsPiEval:  (102 - 77 - 3) / 7 ~= Pi 
   * 22/7 approximates Pi rounded to nearest hundredth (3.14)
   * 3.1415926535897932384626
   
   rs42Eval:  3!! / sqrt(102 - 77)! * 7 = 42
   * 42 is the "Answer to Life, the Universe, and Everything"

   rsCardinalityEval:  102 - 77 - 3 * 7 = 4
   * There are four numbers in this road sign.

   off-by-one rsStateEval:  sqrt(102 - 77)! / 3 + 7 = 48-1
   off-by-one rsStateEval:  102 - 77 + (7 - 3)! = 48+1
   * Arizona was the 48th state admitted to the Union.

   off-by-one rs37Eval:  77 - 102 / 3 - 7 = 37-1
   * Why rs37Eval? 37 Heaven @ http://thirty-seven.org
Updated::2018.05.21
   the numbers are:  77  3  7  102

   more math:  77 % 3 = sqrt(102 % 7) 
   more math:  avg(3, 7) = sqrt(102 - 77)
   more math:  summation(3, 7) + 77 = 102
   * summation(3, 7) = 3+4+5+6+7 = 25

   77 is composite; spf(77) = 7+11 = 18
   102 is composite; spf(102) = 2+3+17 = 22
   * spf(n) = the sum of the prime factors of n
     domain:  n must be a composite number

   BARSfunc math:  spf(102) - spf(77) + 3 = 7
   
   BARSfunc rs42Eval:  spf(102) + spf(77) + sqrt(7 - 3) = 42
   * 42 is the "Answer to Life, the Universe, and Everything"

   off-by-one BARSfunc rsAgeEval:  77 - spf(102) + 7 - 3 = 60-1
   * RoadHacker was 60 years young when he saw this road sign.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 20 May 2018

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