This muralized road sign is in Kingman, Arizona. RoadHacker found it on Pi Day 2017. {the mural}

The muralized road sign says...

+------------------------+ | Oatman 28 | | Keepers of the Wild 30 | | London Bridge 60 | | G.C. Caverns 65 | | G.C. West 71 | | Hoover Dam 73 | | G.C. Nat. Park 170 | +------------------------+the numbers are: 28 30 60 65 71 73 170 the math is: 170 - 65 * (60 / 30) - 28 = sqrt(71 + 73) more math: 60 - 30 - cuberoot(73 - 65) = 170 % 71 rsPhiEval: ((30 % (73 - 71))! + sqrt(65 - 60)) / (170 % 28) = Phi * Phi is the golden ratio and it approximates 1.61803399 off-by-one math: (65 - 60)^(30 - 28) + 73 + 71 = 170 - 1 off-by-one rsAgeEval: 170 / (65 - 60) + ((30 - 28) + (73 - 71))! = 59-1 off-by-one rsAgeEval: 170 / (73 - 71) - (65 - 60)^(30 - 28) = 59+1 * RoadHacker was 59 years young when he found this muralized road sign. ...playground... 170 % 73 = 24; 170 % 71 = 28; 170 % 65 = 40 170 % 60 = 50; 170 % 30 = 20; 170 % 28 = 2

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

**Created:** 17 April 2017

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