Calculate the multifactorial 4!!
We have 2 exclamation symbols (!)
Start at 4
Iterate backwards in steps of 2
Stop when we hit 1 or below
For term 1, we start with 4
Subtract -1 x 2 = -2 to get n(n - -2)
(n - -2) → 4 - -2 = 2
Our factorial term is:
Build final multifactorial answer:
4!! = n(n - -2)...
4!! = 4(2)
How does the Multifactorials Calculator work?
Free Multifactorials Calculator - Calculates the multifactorial n!(m)
This calculator has 1 input.
What 1 formula is used for the Multifactorials Calculator?
= (n - m) * (n - m - m) * ... * 1
For more math formulas, check out our Formula Dossier
What 3 concepts are covered in the Multifactorials Calculator?
- The product of an integer and all the integers below it
- generalisation of a factorial in which each element to be multiplied differs from the next by an integer
- a way in which a set or number of things can be ordered or arranged.
nPr = n!/(n - r)!
Example calculations for the Multifactorials Calculator
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