Question

How to calculate factorial in Kotlin

Answer 1

fun factorial(n: Int): Long {
    return if (n == 0) 1 else n * factorial(n - 1)
}

fun main() {
    val num = 7
    
    println("Factorial of $num = ${factorial(num)}")
}


 
/*
run:

Factorial of 7 = 5040
 
*/

 

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