BARS::Highway Signs on US Hwy-30 in Downtown Joliet, Illinois

These highway signs are on US Hwy-30 in downtown Joliet, Illinois.

The highway signs say...

   +-----------+
   |   I-80    |
   -------------
   | US  Hwy-6 |
   -------------
   | IL Hwy-53 |
   +-----------+
   the numbers are:  80  6  53

   the math is:  cuberoot(80 - 53)! = 6

   BARSfunc rsHwyEval:  80 - 53 + defactorial(6) = 30
   * These highway signs are on US Hwy-30.

   off-by-one rsAgeEval:  53 + 80 % 6 = 54+1
   * RoadHacker was 54 years young when he found these highway signs.

   ...playground...

   spf(80) = 2+2+2+2+5 = 13; spf(6) = 5
   * spf(n) = the sum of the prime factors of n

   53 is a prime number

   * sum_digits(53) = 8; mult_digits(53) = 15; reverse_digits(53) = 35
   * sum_digits(n) = sum the digits of n
   * mult_digits(n) = product of the digits of n
   * reverse_digits(n) = the digits of n reversed
   * domain:  n must be a prime number

   BARSfunc math:  spf(80) - spf(6) = sum_digits(53)


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 19 August 2011

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