Random Number Generator

Overview

This tool generates one or more random numbers between a minimum and maximum value. You can choose whether to allow repeated numbers or require each number to be unique.

Generate Random Numbers

Explanation & Methodology

The Random Number Generator uses JavaScript’s built-in Math.random() function. The formula to generate a random number within a range is:

Random Number = Math.floor(Math.random() * (max - min + 1)) + min

If the "Allow repeated numbers" option is unchecked, the tool ensures that each generated number is unique. If the range is too small for the desired quantity of unique numbers, it will alert you.

Example Calculation

For instance, if you set the minimum value to 1 and maximum value to 100 and choose to generate 5 numbers:

• If "Allow repeated numbers" is unchecked, you might get: 7, 23, 45, 67, 89 (all unique).
• If "Allow repeated numbers" is checked, you might get: 7, 7, 23, 45, 89 (duplicates allowed).

Frequently Asked Questions