This road sign is one mile from Joshua Tree National Park in California.

The road sign says...

+---------------------------+ | Joshua Tree Natl Park 1 | | Cottonwood Springs 8 | | Twentynine Palms 47 | +---------------------------+ | Next Service 47 Miles | +---------------------------+the numbers are: 1 8 47 47 the math is: 47 / 47 + 1 = cuberoot(8) rsAgeEval: (47 + 1)! / 47! + cuberoot(8) = 50 * RoadHacker was 50 years young when he found this road sign. rsCardinalityEval: 47 / 47 + cuberoot(8) + 1 = 4 * There are four numbers in these signs. off-by-one rs42Eval: 47 - 47 % 8 + 1 = 42-1 * 42 is the "Answer to Life, the Universe, and Everything" BARS functions for prime numbers... * mult_digits(n) = product of the digits of n domain: n must be a prime number * sum_digits(n) = sum the digits of n domain: n must be a prime number * 47 is prime; mult_digits(47) = 4*7 = 28 * 47 is prime; sum_digits(47) = 4+7 = 11 BARSfunc rsAgeEval: mult_digits(47)+mult_digits(47)+cuberoot(8)*1 = 58 * MathBabbler was 58 years young when he found this equation. BARSfunc rsAgeEval: sum_digits(47 - 8 * 1 + 47 = 50 * RoadHacker was 50 years young when he found this road sign. BARSfunc rs37Eval: 47 - sum_digits(47) + cuberoot(8) - 1 = 37 * Whyrs37Eval? 37 Heaven @ http://thirty-seven.org

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

**Created:** 15 February 2016

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