This mileage rock is in Quartzsite, Arizona.

The mileage sign says...

+------------------+ | Flagstaff 256 | | Lake Havasu 88 | | Las Vegas 220 | | Laughlin 133 | | Los Angeles 250 | | Phoenix 120 | | Tucson 237 | | Yuma 81 | +------------------+the numbers are: 256 88 220 133 250 120 237 81 the math is: no math quickly found compositeRS: All of the numbers are composite numbers. * note: this is the first usage of thecompositeRSlabel ...playground #0... the numbers sorted: 256 250 237 220 133 120 88 81 256 - 250 = 6 237 - 220 = 17 133 - 120 = 13 88 - 81 = 7 the new numbers are: 6 17 13 7 the math is: (7 - 17 + 13)! = 6 more math: 13 % 6 = log(17 - 7) rsCardinalityEval: log(17 - 13 + 6) + 7 = 8 * There are 8 numbers on this mileage rock. rs37Eval: 7! / 6! + 17 + 13 = 37 rs37Eval: 6 + (17 - 13)! + 7 = 37 * Whyrs37Eval? 37 Heaven @ http://thirty-seven.org rs42Eval: 7! / ((17 + 13) / 6)! = 42 rs42Eval: sqrt((7 * 6)^(sqrt(17 - 13)) = 42 * 42 is the "Answer to Life, the Universe, and Everything" rsAgeEval: (sqrt(17 - 13) + 6) * 7 = 56 * MathBabbler was 56 years young when he found this equation. off-by-one math: sqrt(6 + 17 + 13) = 7-1 off-by-one rs42Eval: 6 + 17 + 13 + 7 = 42+1 ...playground #1... the original numbers are: 256 88 220 133 250 120 237 81 256 - 220 = 36 81 250 % 120 = 10 237 - 133 - 88 = 16 the new numbers are: 36 81 10 16 * do some equationeering... (i.e. find equations) ...playground #2... This mileage rock contains eight composite numbers, so do some equationeering using thespdfunction. Note: Thespdfunction become a BARSfunc on 23 November 2013. * spd(n) = the sum of the proper divisors of n domain: n must be a composite number

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

**Created:** 28 December 2013 (posted 29 December 2013)

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