ENGINE RACK

Four engines.
Four colours.

Each project keeps its own numerical purpose while sharing common instrumentation, evidence discipline and commercial boundaries.

DISPLAY ORDER

Gold → red → blue → violet.

The commercial product keeps this order consistently across site, worker and licensing layers.

Prime counting

Exact interval prime counting with a dedicated Count Primes workflow and evidence-first benchmark tooling.

Prime sieving

A high-performance prime-sieving research engine developed around explicit validation and reproducible measurement.

Prime search

A structured large-prime candidate/search project whose public surface separates observed results from conjecture.

Gravity research

A research-preview numerical framework for gravity experiments, with model assumptions and validation kept explicit.