While driving to school on the northbound Loop 101 on 10 May 2012, MathBabbler exited the Loop 101 at Thomas Road to take a picture of a field located on the Salt River Pima-Maricopa Indian Community in Arizona. MathBabbler's detour resulted in him finding some steet sign math.

The street signs say...

+---------------+ | N. 92 ND 9200 | +---------------+ +-------+ | STOP | --------- | 4-way | +-------+the numbers are: 92 9200 4 the math is: log(9200 / 92) = sqrt(4) more math: log(9200) - log(92) = sqrt(4) rsStateEval: log(9200 / 92) * sqrt(4) = 48 * Arizona was the 48th state admitted to the Union. spf(9200) = 2^4+5^2+23 = 41; spf(92) = 2^2+23 = 27; spf(4) = 2+2 = 4 * spf(n) = the sum of the prime factors of n * domain: n must be a positive composite number BARSfunc rs42Eval: spf(9200) + 4 - cuberoot(spf(92)) = 42 * 42 is the "Answer to Life, the Universe, and Everything" BARSfunc rsStateEval: reverse_digits(spf(9200)) * cuberoot(spf(92))! / sqrt(4) = 48 * reverse_digits(n) = the digits of n reversed * domain: n must be a positive prime number * Arizona was the 48th state admitted to the Union. BARSfunc off-by-one rsAgeEval: spf(9200) + cuberoot(spf(92)) * 4 = 54-1 * RoadHacker was 54 years young when he found these street signs.

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 10 May 2012

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