This road sign and this road sign, which are about twenty yards apart, are on westbound AZ Hwy-260 in Arizona.

The equivalent road signs say...

the 1st road sign +----------------+ | Cottonwood 15 | | Clarkdale 16 | | Jerome 22 | +----------------+ about 20 yards further west +----------------------+ | Dead Horse St Pk 15 | | Tuzigoot Natl Mon 16 | | Jerome St Pk 22 | +----------------------+the numbers are: 15 16 22 15 16 22 the equivalent math is: 15 + 16 + 22 = 15 + 16 + 22 rsAgeEval: 22 + 16 + 15 - sqrt(15 + 16 - 22) = 50 * RoadHacker was 50 years young when he found these signs. looking for math using only one sign... off-by-one Pi math: (22 * sqrt(sqrt(16)) / (15 - 1) = Pi observe... sqrt(16) = 4 sqrt(4) = 2 22 * 2 = 44 44 / 14 approximates Pi (3.14) off-by-one Pi math: 22 / (sqrt((sqrt(16)! - 15))! + 1) = Pi observe... sqrt(16) = 4 4! = 24 24 - 15 = 9 sqrt(9) = 3 3! = 6 22 / 7 approximates Pi (3.14)

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

**Created:** 29 May 2008

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