Twin Prime Finder

Find all twin prime pairs up to a given limit.

Find twin primes up to N (max 10000)

How It Works

Enter a limit N. The tool finds all prime pairs (p, p+2) where both values are prime and both are at most N.

Formula

Twin primes: pairs (p, p+2) where both p and p+2 are prime.

Frequently Asked Questions

What are twin primes?

Twin primes are pairs of primes that differ by 2, such as (3, 5), (11, 13), and (17, 19).

Are there infinitely many twin primes?

This is an unsolved conjecture (the Twin Prime Conjecture). No proof exists yet, but twin primes appear to go on indefinitely.