Frequently Asked Questions
Answers to common questions about the random number generator and its results.
Can duplicates occur?
Yes, unless you enable No duplicates. With that option enabled, every generated number is unique.
How random is it?
Results use PHP’s cryptographically secure random_int function, which draws uniformly from the selected integer range.
Can I generate negative numbers?
Yes. Enter a negative minimum, and optionally a negative maximum, within the allowed range.
Can I generate lottery numbers?
Yes. Use the Lottery numbers generator for a sorted draw without duplicates, or configure this generator manually.