The primes never end

Prove that there are infinitely many prime numbers.

~15 minWritten answer · check your work with LemmaProof by contradictionDivisibilityEuclid

Stuck? A gentle nudge

Something off?

Workspace

Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.