Generate Random Prime Numbers

The Generate Random Prime Numbers tool creates a list of unique or duplicate-friendly prime numbers on the fly. Whether you need a batch of sorted primes for testing, formatting for CSV, or just a quick list for math tasks, this tool gives you full control. Set how many primes you want, define the upper limit, and pick your output format. The result updates instantly with a live preview and counter, ready to copy or export.

Total items: 0
Options
Sort output
Remove duplicates

How to Use:

  1. Adjust the “How many primes?” field to set how many numbers you want.
  2. Set a maximum value for the prime range using “Max range.”
  3. Choose your format using the Output Format radio buttons:
    • New Line
    • Comma-Separated
  4. Use the toggles to:
    • Remove duplicates (on by default)
    • Sort the list
  5. Click Generate to produce your list.
  6. View the output instantly in the right box. It flashes blue when updated.
  7. Use Copy Output or Export to File to save or use your results.
  8. Click Clear All to reset everything.

What the Generate Random Prime Numbers can do:

You can quickly create prime number sets tailored to your needs. Want clean rows of unsorted primes? Easy. Need sorted values without repeats? Toggle it. Want to stuff them into a CSV? Just switch the format. Everything is live, and you’ll always see exactly how many primes you’ve got thanks to the counter below the output.

Example:

How many primes?: 6  
Max range: 30  
Sort: ON  
Format: Comma-Separated  
Remove duplicates: ON

Output: 2, 3, 5, 7, 11, 13

Then switch format to New Line:

Output:

2  
3  
5  
7  
11  
13

Common Use Cases:

Use it for generating sample datasets, teaching prime number concepts, feeding random test values into scripts, or quickly creating numeric lists with format control. The live output and instant export make it a solid utility for math, coding, or even puzzles.

Useful Tools & Suggestions:

Once you’ve got a batch of random primes, Number Primality Test is a quick way to double-check each one. And if you want to factor anything later, Calculate Prime Factors helps break them down cleanly.

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