Prime Number Checker
Prime Number Checker lets you trial division checks possible factors through the square root. Enter your own values or load the worked example.
- Copy or download the computed result
- Adjust whole number
- See the processing method and limits
Method and calculation
Trial division checks possible factors through the square root.
Inputs and settings
Prime Number Checker accepts Whole number (minimum 0, maximum 1000000000000).
Worked example
Prime Number Checker example — Whole number: 97. Computed output: { "prime": true, "factor": null }
Output and limitations
Prime Number Checker: Use finite inputs. Results use double-precision arithmetic.
Technical references: JavaScript numerical operations
Prime Number Checker FAQs
Prime Number Checker applies the following rule to your input: Trial division checks possible factors through the square root. The worked example on this page uses the same processor as the result button.
Prime Number Checker has these boundaries: Use finite inputs. Results use double-precision arithmetic. Start by checking the whole number field against the units or format shown.
Prime Number Checker provides this sample: { "prime": true, "factor": null }. Use the sample button to reproduce it, then replace the inputs with your own values.