How to use: Primes Up To N
Primes Up To N is a free online Math & Statistics tool that list every prime number up to a limit, with the count instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.
Description
List every prime number up to a limit, with the count.
- Math & Statistics
- Because everything is computed client-side, Primes Up To N is safe to use with sensitive data such as API keys, tokens or private logs.
How to use
Using Primes Up To N takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
Run
Examples
Lists the 25 primes up to 100.
Input
100
Output
There are 25 primes ≤ 100: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97
This output was produced by actually running the tool, not written by hand.
Use cases
Common situations where Primes Up To N helps:
- List every prime number up to a limit, with the count.
Parameters
This tool has no options — it works on the input alone.
FAQ
What is Primes Up To N?
Primes Up To N list every prime number up to a limit, with the count. It runs entirely in your browser, so your data stays private.
Is Primes Up To N free to use?
Yes. Primes Up To N is free, unlimited and works without registration or installation.
Does my data get uploaded?
No. All processing happens locally in your browser; nothing is sent to any server.
Good to know
- Everything runs client-side, so extremely large inputs are limited by your browser tab’s memory rather than by a server upload limit.