Kotlin program to display prime numbers between two intervals

Comprehensive Collection of Kotlin Examples

　In this program, you will learn to display prime numbers between the given two intervals (low and high). You will learn how to use while and for loops in Kotlin.

Example: Display prime numbers between two intervals

fun main(args: Array<String>) {
　　　　var low =　20
　　　　val high =　50
　　　　while (low < high) {
　　　　　　　　var flag = false
　　　　　　　　for (i in　2..low　/　2) {
　　　　　　　　　　　　//Condition for non-prime
　　　　　　　　　　　　if (low % i == 0) {
　　　　　　　　　　　　　　　　flag = true
　　　　　　　　　　　　　　　　break
　　　　　　　　　　　　}
　　　　　　　　}
　　　　　　　　if (!flag)
　　　　　　　　　　　　print("$low　")
　　　　　　　　++low
　　　　}
}

When running the program, the output is:

23　29　31　37　41　43　47

　In this program, each number between the low value and the high value is tested for primality. Check if the inner loop is a prime number.

You can check:Kotlin Program to Check Prime NumbersFor more information, please refer to:

The difference between checking a single prime number and checking the interval is that you need to reset the value of flag = false in each iteration of the while loop.

Comprehensive Collection of Kotlin Examples