Kotlin Program to check the square root of a number is prime or not


In this program, You will learn how to check the square root of a number is prime or not in Kotlin.


49 => Square root: 7.0 => Prime

Example: How to check the square root of a number is prime or not in Kotlin.

import java.util.Scanner
import kotlin.math.sqrt

fun main(args: Array<String>) {

    var num: Double
    var n: Int
    var i = 2
    var p = 1

    var sc = Scanner(System.`in`)

    print("Enter a number:")
    num = sc.nextDouble()

    num = sqrt(num)

    n = (num.toInt())

    println("Square root is :$num")

    while (i < n) {
        if (n % i == 0) {
            p = 0
            break
        }
        i++
    }

    if (p == 1) {
        println("Number is prime:$n")
    } else {
        println("Number is not prime:$n")
    }
}

Output:

Enter a number:49
Square root is :7.0
Number is prime:7

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