readme.md

Otis Primes Finder

This repository contains tools for finding Otis primes, which are primes of the form (2^k - 3).

Compilation

Step 1: Compile find_mods.c

gcc find_mods.c -o find_mods

Step 2: Install GMP

Ensure you have the GMP library installed on your system. You can install it using:

• Ubuntu/Debian:

  sudo apt-get install libgmp-dev

• macOS (with Homebrew):

  brew install gmp

• Windows: Download and install GMP from the official GMP website.

Step 3: Compile find_primes.c

gcc find_primes.c -o find_primes -lgmp

Running the Program

Step 1: Run find_mods

./find_mods 1000

You can change the number 1000 to adjust the optimization level.

Step 2: Run find_primes

./find_primes 1000

You can change the number 1000 to find more Otis primes.

Note, the code is mostly black magic, I do not know how it works, but it does.