This road sign is on southbound Indian Highway-371 in New Mexico.

The road sign says...

+--------------------+ | Crownpoint 42 | | Thoreau 61 | | I-40 63 | +--------------------+the numbers are: 42 61 40 63 the math is: 42 + 61 - 63 = 40 more math: (61 + 63) % 42 = 40 rsAgeEval: sqrt(61 * (63 + 40 - 42)) = 61 * RoadHacker was 61 years young when he found this road sign. rs42Eval: sqrt(42^(sqrt((61 + 63) % 40))) = 42 * 42 is the "Answer to Life, the Universe, and Everything" rsCardinalityEval: 42 - 61 + 63 - 40 = 4 * There are four numbers in this road sign. * spf(n) = the sum of the prime factors of n domain: n must be a composite number * 40 is composite; spf(40) = 2+2+2+5 = 11 * 42 is composite; spf(42) = 2+3+7 = 12 * 61 is prime; spf(61) = domain error * 63 is composite; spf(63) = 3+3+7 = 13 * reverse_digits(n) = the digits of n reversed domain: n must be a prime number * 61 is prime; reverse_digits(61) = 16 BARSfunc math: spf(42) + sqrt(spf(42) + spf(63)) = reverse_digits(61)

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

**Created:** 16 June 2018

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