This road sign is on southbound I-17 in Arizona. [Note: This picture was taken by RoadHacker while he was riding in a Greyhound bus from Flagstaff, Arizona, to Phoenix, Arizona.]

The road sign says...

+------------------+ | McGuireville 3 | | Camp Verde 9 | | Phoenix 98 | +------------------+the numbers are: 3 9 98 rsCardinalityEval: 3! / (98 % sqrt(9)) = 3 * There are three numbers in this road sign. rsStateEval: 98 % 9 * 3! = 48 * Arizona was the 48th state admitted to the Union. BARSfunc rsStateEval: 9 / 3 * spf(98) = 48 * Arizona was the 48th state admitted to the Union. * spf(n) = the sum of the prime factors of n domain: n must be a composite number * spf(98) = 2+7+7 = 16 BARSfunc rsStateEval: 3! * sqrt(spd(98) - 9) = 48 * Arizona was the 48th state admitted to the Union. * spd(n) = the sum of the proper divisors of n domain: n must be a composite number * spd(98) = 1+2+7+14+49 = 73 BARSfunc rsAgeEval: 98 - summation(3, 9) = 56 * MathBabbler was 56 years young when he found this equation. * summation(3, 9) = 3+4+5+6+7+8+9 = 42 BARSfunc math: 3 * log(sum_digits(spd(98))) = sqrt(9) * sum_digits(n) = sum the digits of n domain: n must be a prime number * spd(98) = 73, which is prime; sum_digits(73) = 7+3 = 10

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

**Created:** 19 January 2014

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