에라토스테네스의 체
Step through the sieve of Eratosthenes
About the app
A Korean prime number finder that walks through the classic sieve one step at a time. It lays out the numbers from 1 up to a limit you set with a slider, then crosses out the multiples of each new prime so only primes remain. You can play it at slow, normal or fast speed or step back and forth, and tapping any number shows its factors or why it is prime.
- Maker
- @nalm
- Built with
- Grok
- Posted
- Source
- Original post on X
More like this: Learning and science apps built with AI · Apps built with Grok
Newest in learning and science apps: Federal Environmental Tracker, Learn ESP32, Press Burn Harvest Boost, Tie a Tie
Featured in: AI app builders compared
Browse by category
- Making money19
- Games105
- One prompt9
- Mac utilities20
- Dev tools6
- AI agents13
- Productivity43
- Business & shops43
- Creative & music53
- Health & life19
- Learning & science41
Built with
Added . Is this yours or is something wrong? Report an issue or get it featured.
The prompt
How was it built?
Ask for the prompt.
Not shared yet
@nalm hasn't shared the prompt behind 에라토스테네스의 체. If it gets added, it shows up here with a copy button.
More like this
More built with Grok, 15 learning apps.
For makers
Ship it once.
Let people find it.
Listing is free. Send the link and your X handle, and we email you when it's live.
Submit your app, freeShow the prompt.
Add the prompt you used; it shows on your card and app page with a copy button.
The prompt



