sir,
how we gonaa calculate factorial for very large no. ??
I have look for a problem in hacker blocks having limits n,r<1000000000 in nCr ???
Regarding factorial of large no
Hey @gargshivam2001 since it’s difficult to calculate factorial of very large number using recursive or any iterative way. There’s other way too to calculate it as well
read this editorial, it will help you to understand the approach very well 
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