Prime number Learn programming Visual Basic (VB.net)



Lesson:

Flow Control


Exercise:

Prime number


Objetive:

Write a Visual Basic (VB.net) program that asks the user for an integer and determines if it is a prime number or not.


Code:

Imports System
Public Class exercise46
    Public Shared Sub Main()
        Dim number As Integer
        Dim dividers As Integer = 0
        Console.Write("Enter a number: ")
        number = Convert.ToInt32(Console.ReadLine())

        For i As Integer = 1 To number
            If number Mod i = 0 Then dividers += 1
        Next

        If dividers = 2 Then
            Console.WriteLine("The number is prime")
        Else
            Console.WriteLine("The number is not prime")
        End If
    End Sub
End Class



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