Prime Number Generator
List prime numbers up to a chosen limit.
Calculations run in this browser. Values are not submitted to the server.
Result
Formula and assumptions
Uses the Sieve of Eratosthenes. Limit is capped at 1,000,000 to keep the browser responsive.
Example values are shown in the input placeholders. Results use browser number precision unless the tool uses exact integer arithmetic. Check units and assumptions before using a result.