Factorial in Kotlin

Welcome to the Factorial in Kotlin page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

import java.math.BigInteger

fun main(args: Array<String>) {
    if (args.isNullOrEmpty() || args[0].toIntOrNull()?.takeIf { it >= 0 } == null) {
        println("Usage: please input a non-negative integer")
        return
    }

    val num = args[0].toInt()
    var factorial = BigInteger.ONE
    for (i in 1..num) {
        // factorial = factorial * i;
        factorial = factorial.multiply(BigInteger.valueOf(i.toLong()))
    }
    println(factorial)
}

Factorial in Kotlin was written by:

• Blake.Ke
• Satyajit Pradhan

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

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