Factorial of a number

Medium 30 pts New · no attempts yet csharp

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Compute factorial of 5 using a loop and print the result (120).

Static hints

Initialize fact = 1 and multiply in a for loop from 1 to n.

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Official solution

using System;

class Program
{
    static void Main()
    {
        int n = 5;
        long fact = 1;
        for (int i = 1; i <= n; i++)
            fact *= i;
        Console.WriteLine(fact);
    }
}

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Explanation

Iterative factorial avoids stack overflow for larger n. Use long for bigger values.

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Factorial of a number

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