Calculadora de Permutacoes Gratis
Calcule o numero de permutacoes (arranjos ordenados) de n elementos tomados k a k.
Permutations
720
N Factorial3,628,800
N Minus R Factorial5,040
Formula
How to Calculate Permutations
Formula
P(n, r) = n! / (n - r)!
Where:
Permutations count arrangements where order matters.
Exemplo Resolvido
How many ways can you arrange 3 items from a set of 10? (Order matters)
- 01P(10, 3) = 10! / (10-3)!
- 02= 10! / 7!
- 03= 10 × 9 × 8
- 04= 720
Perguntas Frequentes
What is a permutation?
A permutation is an arrangement of objects where the order matters. For example, the arrangements ABC and BAC are different permutations.
What is the difference between permutation and combination?
Permutations count arrangements where order matters (ABC ≠ BAC). Combinations count selections where order does not matter (ABC = BAC).
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