This road sign is on northbound AZ Hwy-85 in Arizona.

The road sign says...

+-----------------+ | Why 27 | | Gila Bend 81 | +-----------------+the numbers are: 27 81 the math is: cuberoot(27) = sqrt(sqrt(81)) more math: cuberoot(27) = 4root(81) rs42Eval: summation(cuberoot(27), sqrt(81)) = 42 * 42 is the "Answer to Life, the Universe, and Everything" * summation(3, 9) = 3+4+5+6+7+8+9 = 42 rsAgeEval: cuberoot(27)! * sqrt(81) = 54 * RoadHacker was 54 years young when he found this road sign. rsAgeEval: avg(27, 81) = 54 * RoadHacker was 54 years young when he found this road sign. rsCardinalityEval: cuberoot(27)! / sqrt(81) = 2 * There are two numbers in this road sign. * spf(27) = 3+3+3 = 9; spf(81) = 3+3+3+3 = 12 * spf(n) = the sum of the prime factors of n BARSfunc math: spf(27) = sqrt(81) BARSfunc rsCardinalityEval: spf(81) / cuberoot(27)! = 2 * There are two numbers in this road sign. off-by-one rsHwyEval: 81 + cuberoot(27) = 85-1 * This road sign is on AZ Hwy-85.

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

**Created:** 26 May 2012

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