How to write a function in Swift that prints prime #s

General Discussion
3

If you want to check a single number you can do something like this:

func isItPrime(_ n: Int) {
    
        var isPrime = true
        
        if n == 1 {
            isPrime = false
        }
        if n != 2 && n != 1 {
            
            for i in 2 ..< n {
                
                if n % i == 0{
                    
                    isPrime = false
                }
            }
        }
        
        if isPrime {
            print("\(n) is prime!")
        } else {
            print("\(n) is not prime!")
        }
    }

print(isItPrime(2))

Blessings,
—Mark