This road signs are on eastbound US Hwy-136 on the east-side of Hamilton, Illinois.

The road signs say...

+------------------+ | Elvaston 5 | | Carthage 11 | +------------------+ +-------+ | Speed | | Limit | | 55 | +-------+the numbers are: 5 11 55 the math is: 5 * 11 = 55 [solve for 'n] 5 * n = 55 more math: sum_prime_factors(55) = 5 + 11 observe... the prime factors for 55 are 5 and 11 split_into_squares_sum(55 - 5) = { 25, 16, 9 } the numbers become: 11 25 16 9 the Pi math is: (25 - sqrt(9)) / (11 - sqrt(16)) = 22/7 (3.14) observe... sqrt(9) = 3 sqrt(16) = 4## Update::2009.01.30

This BARS was selected to be one of the BARS of the Week for week three of the spring 2009 semester. The signs used this BARS were encountered when RoadHacker was 50 years young, but he had a birthday a couple of weeks after finding the signs; consquently, the following

rsAgeEvalwas discovered.the numbers are: 5 11 55 rsAgeEval: 55 - sqrt(11 + 5) = 51 * MathBabbler was 51 years young when he inserted this rsAgeEval.## Update::2014.05.29

RoadHacker revisited this road sign on 18 May 2014.

the numbers are: 5 11 55 rsAgeEval: 55 + 11 % 5 = 56 * MathBabbler was 56 years young when he made this video. rsAgeEval: 55 + sqrt(sqrt(5 + 11)) = 57 * MathBabbler was 57 years young when he updated this BAB.

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

**Created:** 19 May 2008

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