How to use CheckIfPrime

Question

I need to use the CheckIfPrime item in my code, but having some issue, may i know how should I deal with it? Do I need to make declaration?

For number As Integer = 1 To 30
    If CheckIfPrime(number) = True Then
        sb.Append(number.ToString & " ")
    End If
Next

Please advice on how can I do that in Visual Basic.

Do you have a method CheckIfPrime(int n)? – Johan Larsson Feb 05 '13 at 08:17 — Johan Larsson, Feb 05 '13 at 08:17

score 2 · Answer 1 · edited May 23 '17 at 11:48

The VB.net has no CheckIfPrime method, so to deal with it in your task we need to create a method to check the number if is prime or not.

   Public Function CheckIfPrime(number As Integer) As Boolean
        For i As Integer = 2 To number - 1
            If number Mod i = 0 Then
                Return False
            End If
        Next
        Return True
    End Function

Usage

   For number As Integer = 1 To 30
      If CheckIfPrime(number) = True Then
       'Console.WriteLine(number.ToString & " ")
       sb.Append(number.ToString & " ")
      End If
   Next

Source

How to use CheckIfPrime

1 Answers1