This road sign is on westbound CA Hwy-62 in Earp, California.

The road sign says...

+----------------+ | Route 95 | | Vidal Jct 16 | | 29 Palms 109 | +----------------+CA Hwy-62 is RoadHacker's favorite highway so it was disappointing to only find off-by-one math in this road sign. We re-examined the road sign after the

spf(n)function was created. Thespf(n)function outputs the sum of the prime factors of the input number.the numbers are: 95 16 29 109 off-by-one math: 109 - 95 + 16 = 29 (+ 1) the math is: spf(95) + sqrt(16) = spf(109 + 29) observe... prime factors of 95 are 5 and 19 spf(95) = 5 + 19 = 24 sqrt(16) = 4 24 + 4 = 28 29 and 109 are prime numbers 29 + 109 = 138 prime factors of 138 are 2 and 3 and 23 spf(138) = 2 + 3 + 23 = 28 rs42Eval: 29 + 16 - sqrt((109 - 95)_{5}) = 42 * 42 is the "Answer to Life, the Universe, and Everything" observe... 109 - 95 = 14 14_{5}= 9 sqrt(9) = 3

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

**Created:** 05 December 2007

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