WebToolsPlanet
Generator Tools

Random Prime Generator

Generate random prime numbers for math examples, classroom exercises, coding tests, and sample datasets.

Last updated: May 31, 2026

Client-Side Processing
Input Data Stays on Device
Instant Local Execution

Find this tool useful? Support the project to keep it free!

Buy me a coffee

What is Random Prime Generator?

This tool finds prime numbers in your selected range and randomly picks from that prime pool. You can require unique primes or allow repeats.

How to Use Random Prime Generator

1

Enter a minimum and maximum value.

2

Set the count.

3

Choose whether primes must be unique.

4

Click Generate.

5

Copy the prime list.

Common Use Cases

  • Creating prime-number practice examples.
  • Testing numeric algorithms.
  • Building sample math datasets.
  • Generating puzzle or game values.

Example Input and Output

Generate unique primes under 100.

Settings
Min: 2, Max: 100, Count: 5, Unique
Primes
37
11
89
53
7

Data Privacy

Prime numbers are generated locally in your browser.

Frequently Asked Questions

Can results repeat?
Repeats are allowed only when Unique primes only is disabled.
What happens if the range has no primes?
The tool shows an error and no results.
Can I copy every prime?
Yes. The copy button copies one prime per line.