Developer Tools
Random Number Generator
Random Number Generator generate up to 10,000 uniform random integers with optional uniqueness and no hidden 100-number cap.
Developer Tools
Random Number Generator
Generate up to 10,000 uniform random integers with optional uniqueness and no hidden 100-number cap.
Formula
Each output is sampled uniformly from the inclusive integer range using cryptographic random values with rejection sampling. Unique mode rejects already-selected values and validates that the requested count fits the range.
About the Random Number Generator
Generate up to 10,000 uniform random integers with optional uniqueness and no hidden 100-number cap. Developer tools transform, generate, validate, or analyze the exact text, number, network, encoding, or random input named by the calculator.
How the Random Number Generator Works
Each output is sampled uniformly from the inclusive integer range using cryptographic random values with rejection sampling. Unique mode rejects already-selected values and validates that the requested count fits the range.
The calculation runs in your browser. Submitted values are validated for the required numeric range, data shape, units, and method-specific restrictions before a result is shown.
Required Inputs
- Minimum integer (required)
- Maximum integer (required)
- How many integers (required)
- Allow duplicates (required) Options: Yes, No
Results Reported
The result panel shows the final answer together with the intermediate quantities needed to audit the calculation. Depending on this method, reported values include:
numbersminimummaximumcountallow_duplicatesobserved_minimumobserved_maximummean
Random Number Generator Example
Use the example data button, calculate, then review the result table, formula, and worked solution before using the answer.
| Input | Example value |
|---|---|
| Minimum integer | 1 |
| Maximum integer | 10000 |
| How many integers | 6000 |
| Allow duplicates | no |
How to Use the Calculator
- Confirm that the calculator title and method match the quantity, test, conversion, or planning question you need to solve.
- Enter values with compatible units and the requested sample, group, matrix, count, date, or option format.
- Select Example Data to inspect a valid input layout, or enter your own values and select Calculate.
- Review the result table, formula, worked substitutions, warnings, and interpretation rather than using only the headline number.
- Use Copy Result or Download CSV when you need a reusable record of the displayed calculation.
Understanding the Result
Review generated credentials, addresses, encoded data, and random output before production use, and do not submit confidential values to an untrusted page.
Keep the entered values, units, selected options, and any warning shown beside the result. For a hypothesis test, report the statistic, degrees of freedom where applicable, p-value, alpha level, effect size, and decision. For an estimate or conversion, report the formula convention and final unit.
Accuracy and Limitations
The calculator keeps full browser precision during calculation and rounds only for display. Accuracy still depends on correct inputs and on whether the displayed model represents the real problem. Educational calculators cannot replace required professional review, current official rules, field measurements, laboratory methods, or specialist statistical software where those are necessary.
Frequently Asked Questions
What does the Random Number Generator calculate?
Generate up to 10,000 uniform random integers with optional uniqueness and no hidden 100-number cap.
Which formula does the Random Number Generator use?
Each output is sampled uniformly from the inclusive integer range using cryptographic random values with rejection sampling. Unique mode rejects already-selected values and validates that the requested count fits the range.
Is this a separate calculator?
Yes. This page has its own public URL, inputs, formula notes, browser function, fixture, and worked solution.
What should I verify before using the answer?
Check the entered values, units, selected options, formula convention, warnings, and result interpretation shown on this calculator page.