rsCardinalityEval on AZ Highway-377 at AZ Highway-277 in Arizona

The highway signs say...

+------------------+
| END Arizona  377 |
+------------------+
| Arizona 277 <--> |
+------------------+
   the numbers are:  377  277

   rsCardinalityEval:  log(377 - 277) = 2
   * There are two numbers in these highway signs.

   ...BARSfuncs...

   * spf(n) = the sum of the prime factors of n
     domain: n must be a composite number
   * 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

   * spf(377) = 13+29 = 42
   * spf(277) = domain error; 277 is prime (not composite)
   * sum_digits(277) = 2+7+7 = 16; mult_digits(277) = 2*7*7 = 98

   BARSfunc rsHwyEval:  sqrt(377^sqrt(sqrt(sum_digits(277)))) = 377
   * These highway signs are on AZ Highway-377.

   BARSfunc rs42Eval:  sqrt(spf(377)^sqrt(sqrt(sum_digits(277)))) = 42
   * 42 is the "Answer to Life, the Universe, and Everything"

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 03 June 2018

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