### BARS::39 Miles South of Globe in Winkelman, Arizona

This road sign is on northbound AZ Hwy-77 in Winkelman, Arizona.

```   +-------------------+
| Jct U.S. 70    36 |
| Globe          39 |
+-------------------+
```

This is the first BARS to use the spf function (sum of the prime factors).

```   the numbers are:  70   36   39

the math is:  spf(70) - sqrt(spf(39)) = spf(36)

spf(70) = 14  (prime factors for 70: 2, 5, 7)
spf(39) = 16  (prime factors for 39: 3, 13)
spf(36) = 10  (prime factors for 36: 2, 2, 3, 3)
```
##### Update::2008.05.16

On 1 May 2008, MathBabbler wrote this C++ program to convert a string into a number. The program converts the string into the digits that MathBabbler needs to press on his cell phone in order to send the string as a text message. The number of the string-to-number conversion is the sum of the digits digits needed to send to enter the string as a text message.

```     jct: 52228       (sums to 19)
u.s.: 887777      (sums to 65)
globe: 45556662233 (sums to 47)
```
```   the numbers become:  70  36  39  19  65  47

the math is:  (47 - (39 - 36)) / (19 - (70 - 65)) = Pi

observe...
numerator:  39 - 36 = 3
47 - 3 = 44
denominator:  70 - 65 = 5
19 - 5 = 14
44 / 14 approximates Pi (3.14)
```
##### Update::2013.03.22

RoadHacker encountered this road sign again on 15 March 2013 as part of his Pi Day 2013 road trip.

```   the numbers are:  70  36  39

rs37Eval:  70 - 39 + sqrt(36) = 37
* Why rs37Eval? 37 Heaven @ http://thirty-seven.org

off-by-one rs42Eval: 70 % sqrt(36) + 39 = 42+1
* 42 is the "Answer to Life, the Universe, and Everything"

off-by-one rs42Eval: sqrt(70 % sqrt(36)) + 39 = 42-1
* 42 is the "Answer to Life, the Universe, and Everything"

off-by-one rsCardinality:  70 % (39 % sqrt(36))! = 3+1
* There are three numbers in this road sign.
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 26 November 2007 