Prime Number Generator
Generate every prime number in any range instantly. Just enter the start and end values to get the full list, the count, and the smallest and largest primes — useful for homework, coding exercises and number theory practice.
How to use
- Enter the start and end values of the range.
- All primes will be listed in the result box below, separated by commas.
- Copy the comma-separated list for use in code, spreadsheets or notes.
Tips
- Narrow the range if the page feels slow — ranges are capped to keep the page fast.
- The largest and smallest primes are handy for picking sample data for code tests.
- Copy the comma-separated list straight into spreadsheets or code.
Note: Uses the Sieve of Eratosthenes method. End is capped at 1,000,000 and the range at 100,000 numbers so the page stays fast.
Frequently Asked Questions (FAQ)
What does the Prime Number Generator do?
It lists all prime numbers in the range you enter, with the count and the smallest and largest prime.
What are the range limits?
The end value is capped at 1,000,000 and the range at 100,000 numbers, so the page stays fast.
How does the tool find the primes?
It uses the Sieve of Eratosthenes method and lists every prime in your range separated by commas, ready to copy into code or spreadsheets.
What can I use the list for?
Math homework, coding exercises, number theory practice, and picking sample data for code tests.