SOLUTION: what is the shortest formula for factorial. please send me the answer. for example we have 100!=100.99.98....... its too long can you offer me an easy and short formula for it.

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Question 448404: what is the shortest formula for factorial. please send me the answer.
for example we have
100!=100.99.98....... its too long can you offer me an easy and short formula for it.
thanks.





Found 2 solutions by edjones, richard1234:
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
5!=5*4*3*2*1

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
100! = 100*99*98*...*1. You could also express it using product notation:



Or as a recursive sequence, where and . 100! is simply .