Ivan Shishkin, Birch Grove

Factorielle

Definition / Arithmetic /

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Définition formelle

La factorielle d’un entier naturel nn est le produit de tous les entiers de 11 à nn :
n!=1×2×3×…×n.n!=1\times 2\times 3\times \ldots\times n.

Remarques
  • Par convention, on pose 0!=10!=1.

Practice this concept with exercises

1 / 3

  • Calculer la factorielle de 33 :
    3!3!

    Open exercise
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