### BARS::100 E 1st St and 200 N Amherst Rd in Earth, Texas

These street signs are in Earth, Texas.

The street signs say...

```   +------------------+
| E 1st 100 St     |
| N Amherst 200 Rd |
+------------------+
```
```   the numbers are:  1  100  200

the math is:  log(sqrt(200 - 100)) = 1

off-by-one math:  200 / 100 = 1 + 1

BARSfunc math:  sqrt(sqrt(spf(200))) = 1 + log(sqrt(100))
* spf(n) = the sum of the prime factors of n
* spf(200) = 2 + 2 + 2 + 5 + 5 = 16
* sqrt(16) = 4; sqrt(4) = 2
* sqrt(100) = 10; log(10) = 1
```
##### Update::2009.09.20

MathBabbler was adding exercises to nBABs about the numbers 1109 (Earth's population) and 79031 (Earth's zip code) and that prompted him to re-visit this BARS using street signs from Earth.

```   the numbers are:  1  100  200

BARSfunc math:  log(spf(100) - sqrt(spf(200))) = 1
* spf(n) = the sum of the prime factors of n
* spf(100) = 2 + 2 + 5 + 5 = 14
* spf(200) = 2 + 2 + 2 + 5 + 5 = 16; sqrt(16) = 4
* 14 - 4 = 10; log(10) = 1

number system off-by-one rsAgeEval:  200 / 1002 + 1 = 52 - 1
* MathBabbler was 52 years young when he found this equation and
RoadHacker was 52 years young when he found these street signs.
* check w/Wolfram|Alpha

[exercise] 1002 = ______
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 04 July 2009 