[algogeeks] Is there any other way to find factorial of number except multiplication

[Thati ravi]

Hi everybody


 I am in need to find factorial of  numbers .
I know the classical method
 4!= 4*3*2*1
 5!=5*4!
          this way.


 But if I have to find factorial of 200 ,321, or bigger numbers like this....what should i do .. the algorithm requires somany CPU cycles for this kinda numbers.

  Is there any other algorithm which requires less amount of processing .and finds the factorial of  any bigger number in simple way.

(without using parallelizing methods if you have )
 

Ravi.Thati
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