### BARS::63 Miles To I-40 on Indian Highway-371 in New Mexico

This road sign is on southbound Indian Highway-371 in New Mexico.

```+--------------------+
| Crownpoint      42 |
| Thoreau         61 |
| I-40            63 |
+--------------------+
```
```   the numbers are:  42  61  40  63

the math is:  42 + 61 - 63 = 40

more math:  (61 + 63) % 42 = 40

rsAgeEval:  sqrt(61 * (63 + 40 - 42)) = 61
* RoadHacker was 61 years young when he found this road sign.

rs42Eval:  sqrt(42^(sqrt((61 + 63) % 40))) = 42
* 42 is the "Answer to Life, the Universe, and Everything"

rsCardinalityEval:  42 - 61 + 63 - 40 = 4
* There are four numbers in this road sign.

* spf(n) = the sum of the prime factors of n
domain: n must be a composite number
* 40 is composite; spf(40) = 2+2+2+5 = 11
* 42 is composite; spf(42) = 2+3+7 = 12
* 61 is prime; spf(61) = domain error
* 63 is composite; spf(63) = 3+3+7 = 13

* reverse_digits(n) = the digits of n reversed
domain:  n must be a prime number
* 61 is prime; reverse_digits(61) = 16

BARSfunc math:  spf(42) + sqrt(spf(42) + spf(63)) = reverse_digits(61)
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 16 June 2018 