Prime Factorization Calculator - Prime Test, Factors, and Divisor List

Test if a number is prime and get its full prime factorization plus divisor list

🔒 100 % in-browser🆓 Gratuit pour toujours⚡ Pas de signup

Note : L'interface de l'outil ci-dessous n'est actuellement disponible qu'en anglais. On traduit les UI une par une. Voir cet outil en anglais →

Number (1 to 1,000,000,000,000)

Prime?

No - 360 is composite

Prime factorization

360 = 2^3 × 3^2 × 5

Distinct primes: 2, 3, 5

Divisors (24)

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360

Trial division up to √n. Divisor list shown only when n ≤ 1,000,000 to keep the page fast.

Estimations uniquement. Les résultats sont générés par des formules générales à partir des données que tu saisis, uniquement à titre informatif. Ce ne sont pas des conseils financiers, fiscaux, juridiques, médicaux ou professionnels, et ils ne tiennent pas compte de ta situation individuelle, juridiction, taxes, frais ou état de santé. Vérifie toujours les chiffres importants avec un professionnel qualifié. En utilisant cet outil, tu acceptes nos Conditions & Avertissement.

Comment ça marche

1
Enter a number
Any positive integer up to 1 trillion.
2
Read prime test
The tool tells you immediately whether the number is prime or composite.
3
Read factorization & divisors
Composite numbers show their full prime factorization; numbers up to 1,000,000 also show the complete divisor list.

À propos de Prime Factorization Calculator - Prime Test, Factors, and Divisor List

Free prime factorization calculator. Enter any integer from 1 to 1,000,000,000,000 to check whether it is prime, get its complete prime factorization in exponent form (e.g. 360 = 2³ × 3² × 5), and (for smaller numbers) see the full list of divisors. Uses efficient trial division. Runs entirely in your browser. Prime Factorization Calculator - Prime Test, Factors, and Divisor List sur 712 Tools tourne entièrement dans ton browser via des APIs JavaScript natives - aucun server ne voit jamais tes données. Résultats instantanés, privacy complète, et aucune limite d'upload.

Que ce soit pour une session de debug, un sanity check rapide ou un incident en prod, cet outil est gratuit à utiliser autant que tu veux. Pas de watermarks, pas de signup et pas d'ads dans l'outil.

Questions fréquentes

How does the tool factor large numbers?

Trial division up to the square root - fast enough for numbers up to about a trillion in the browser. Very large semiprimes would need more advanced algorithms.

Why is 1 not prime?

By convention. A prime has exactly two distinct positive divisors (1 and itself); 1 only has one.

Is my data uploaded?

No. All calculations run entirely in your browser.

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