This road sign was found in Oregon during the summer of 2006.

The road sign says...

+----------------------+ | <-- Dee 6 | | Lost Lake 21 | | To Route 35 --> | | Hood River 17 | +----------------------+MathBabbler was not able to find any math in this road sign, but he played with it again after the

spf(n)function was created (late-Nov. 2007). [spf(n) outputs the sum of the prime factors of 'n']the numbers are: 6 21 35 17 the math is: spf(21) + spf(35) - spf(6) = 17 observe... spf(21) = 10 [prime factors for 21: 3 7] spf(6) = 5 [prime factors for 6: 2 3] 17 = spf(17) [17 is a prime number] [evaluate] spf(35) = _____ [exercise] prime factors for 35 are __________## Update::2010.02.04

This BARS was selected to be one of the BARS of the Week for week #4 of the spring 2010 semester.

the numbers are: 6 21 35 17 more math: 21 % (35 - 17)! = 6 rsStateEval: 35 - 6 + (21 - 17) = 33 * Oregon was the 33rd state admitted to the Union. rsStateEval: 35 - 17 % cuberoot(6 + 21) = 33 * Oregon was the 33rd state admitted to the Union. off-by-one rsAgeEval: 35 + 21 - 17 % 6 = 50+1 * RoadHacker was 50 years young when he found this road sign. off-by-one rsAgeEval: 35 + 17 - 21 % 6 = 49+1 * RoadHacker was 50 years young when he found this road sign. off-by-one rsAgeEval: 35 + 21 - 17 % 6 = 52-1 * MathBabbler was 52 years young when he found this equation. off-by-one rs42Eval: 35 + 6 + sqrt(21 - 17) = 42+1 * 42 is the "Answer to Life, the Universe, and Everything" off-by-one rs42Eval: 21 + 17 + 35 % 6 = 42+1 * 42 is the "Answer to Life, the Universe, and Everything"

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

**Created:** 02 February 2008

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