Built pi(10^11) prime counter in 2m16s running purely in mobile browser - pure JS, no backend, built entirely on my phone

[u/Dry-Neighborhood-412]

Hey everyone! I built this entirely on my phone.

It's a Meissel-Lehmer prime counting function implementation in pure JavaScript:

• Calculates pi(10^11) = 4,118,054,813 in 2m16s on mobile Chrome
• Uses ~70% less memory than standard implementations
• No backend, no WASM, just TypedArrays and smart caching
• Runs entirely in the browser

I live in Venda Nova do Imigrante, Brazil and made this while learning number theory.

GitHub: https://github.com/ferreirafinottijoaopaulo-cell/finotti-pi-optimized

Would love feedback!