Prime Tool

A rather dumb but fairly convenient tool for prime number related tasks (two of them), which I coded when I started to learn programming.

Installation

make
PREFIX=/your/prefix/ make install

By default it installs into ~/.usr/bin. This is rather idiosyncratic, but doesn't require sudo and doesn't interfere with ~/.local.

If you don't need it on your PATH (why would you), then don't install and just run ./primetool from the repository root after running make.

primetool -p NUMBER will find all prime numbers up to NUMBER and print them to stdout (5 numbers on a line, duh).

primetool -f NUMBER will factorize the NUMBER and print the factorization to stdout.