# Kotlin Program to Check Whether a Number can be Expressed as Sum of Two Prime Numbers

#### In this program, you’ll learn to check whether a given number can be expressed as a sum of two prime numbers or not. This is done with the help of loops and break statements in Kotlin.

To accomplish this task, `checkPrime()`

function is created.

## Example: Integer as a Sum of Two Prime Numbers

```
fun main(args: Array<String>) {
val number = 34
var flag = false
for (i in 2..number / 2) {
// condition for i to be a prime number
if (checkPrime(i)) {
// condition for n-i to be a prime number
if (checkPrime(number - i)) {
// n = primeNumber1 + primeNumber2
System.out.printf("%d = %d + %dn", number, i, number - i)
flag = true
}
}
}
if (!flag)
println("$number cannot be expressed as the sum of two prime numbers.")
}
// Function to check prime number
fun checkPrime(num: Int): Boolean {
var isPrime = true
for (i in 2..num / 2) {
if (num % i == 0) {
isPrime = false
break
}
}
return isPrime
}
```

When you run the program, the output will be:

34 = 3 + 31 34 = 5 + 29 34 = 11 + 23 34 = 17 + 17

# Python Example for Beginners

## Two Machine Learning Fields

There are two sides to machine learning:

**Practical Machine Learning:**This is about querying databases, cleaning data, writing scripts to transform data and gluing algorithm and libraries together and writing custom code to squeeze reliable answers from data to satisfy difficult and ill defined questions. It’s the mess of reality.**Theoretical Machine Learning**: This is about math and abstraction and idealized scenarios and limits and beauty and informing what is possible. It is a whole lot neater and cleaner and removed from the mess of reality.

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