### BARS::9 Miles North of Sunset Point Rest Area on I-17 in Arizona

This road sign is on southbound I-17 nine miles north of the Sunset Point Rest Area in Arizona. [Note: The picture of the road sign was taken from a Greyhound bus.]

```   +-------------------------+
| Rest Area             9 |
| Black Canyon City    19 |
| Phoenix              63 |
+-------------------------+
```
```   the numbers are:  9  19  63

the math is:  63 % 19 = sqrt(9)!

rsAgeEval:  63 - 19 + 9 = 53
* RoadHacker was 53 years young when he found this road sign.

off-by-one rs42Eval:  63 - 19 - sqrt(9) = 42-1
* 42 is the "Answer to Life, the Universe, and Everything"

off-by-one rsStateEval:  63 - 19 + sqrt(9) = 48-1
* Arizona was the 48th state admitted to the Union.

BARSfunc math:  19 - sqrt(9)! = spf(63)
* spf(n) = the sum of the prime factors of n
* spf(63) = 3+3+7 = 13

BARSfunc rsHwyEval:  19 - sqrt(spf(63) - 9)) = 17
* This road sign is on I-17.

BARSfunc rsStateEval:  639 - mult_digits(19) = 48
* Arizona was the 48th state admitted to the Union.
* mult_digits(n) = product of the digits of n
* domain:  n must be a prime number
* mult_digits(19) = 1*9 = 9
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 01 May 2011