### 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

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