A pure functional Primality Test in Scala

A simple primality test in Scala, using

6k ± 1

optimization.

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This piece of code is described in this DEV.TO article.

Build with SBT

1. Install 'sbt' from here: http://www.scala-sbt.org/download.html

2. Run a sbt shell with

   cd [project dir]
   sbt
   

3. Compile with

   compile
   

4. Run with

   run