Prime Checker

Checks whether a number is prime. If it isn't, shows its smallest factor.

Checks whether a number is prime. If it isn't, shows its smallest factor.

Use cases

  • Checking a number for a math homework problem
  • Exploring number theory for fun

Examples

A prime number

17
{"is_prime": true, "smallest_factor": null}

FAQ

Is my data sent to a server?

Yes — the calculation runs on the server for this tool.

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