This road sign was found along square numbered NM Hwy-16 on Pi Day 2007 in New Mexico.

The road sign says...

+--------------------+ | Pena Blance 9 | | Cochiti Lake 12 | | Cochita Pueblo 13 | | Cochita Lake | | Golf Course 15 | +--------------------+the numbers are: 9 12 13 15 the math is: sqrt(12 + 13) * sqrt(9) = 15 observe... 12 + 13 = 25 sqrt(25) = 5 sqrt(9) = 3 5 * 3 = 15 rsHwyEval: (15 + 12) / 9 + 13 = 16 The road sign was found on NM Hwy-16. rsAgeEval: 9 + 12 + 13 + 15 = 49 The road sign was found when MathBabbler was 49 years young. more math: sqrt(12 / sqrt(9)) + 13 = 15 observe... sqrt(9) = 3 12 / 3 = 4 sqrt(4) = 2 13 + 2 = 15 more math: 12 / sqrt(9)! + 13 = 15 observe... sqrt(9) = 3 3! = 6 12 / 6 = 2 2 + 13 = 15 off-by-one math: 12 - 9 + 13 = 15 + 1 off-by-one math: sqrt(15 + 13 - 12) = sqrt(9) + 1 off-by-one math: sqrt(12 + 13) + 9 = 15 - 1

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

**Created:** 16 March 2007

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