BARS::21 Miles From Needles in California (on Pi Day 2010)

This road sign is on northbound US Hwy-95 in California.

The road sign says...

   +--------------------+
   | Needles         21 |
   | Searchlight     75 |
   | Las Vegas      128 |
   +--------------------+
   the numbers are:  21  75   128

   rsTweetLenEval:  75 % 21 + 128 = 140
   * 140 is the maximum length of a Twitter posting (tweet).

   off-by-one rsStateEval:  128 - 75 - 21 = 31+1
   * California was the 31st state admitted to the Union.

   BARSfunc rsAgeEval:  128 - 75 - log(spf(21)) = 52
   * RoadHacker was 52 years young when he found this road sign.
   * spf(n) = the sum of the prime factors of n
   * spf(21) = 3+7 = 10

   BARSfunc off-by-one rsAgeEval:  75 - spf(128) - spf(21) = 52-1
   * MathBabbler was 52 years young when he found this equation.
   * spf(128) = 2+2+2+2+2+2+2 = 14

   BARSfunc math:  spf(128) - spf(75) = log(spf(21))
   * spf(75) = 3+5+5 = 13

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 18 March 2010

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