Why test cases are not getting cleared ;

the output is showing correct ,but whys the test cases are not getting cleared

Constraints
1 < = N < = 500

see the constraints they are very large for factorial

100 factorial has 158 digits
you can’t store them in int ,float or double etc

you have to use array for this

For complete Algorithm see this

can you explain this video chat …

which video chat…?

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