Prime Number or NOT

'This Program is used to determine whether a value is a prime number or not. Create two text boxes(txtNum and txtTrue) and One Button(Call what you want)

Private Sub cmdPrime_Click(sender As Object, e As EventArgs) Handles cmdPrime.Click
Dim x, y, m As Double
'x will be the number you input in the text box(txtNum.text)
Dim count, v As Double
'count will determine all the numbers that will be used to divide with
x = txtNum.Text
'what ever you input in the textbox(txtNum.text) will be stored in x
y = x - 1
'we only want to divide by numbers less then the given number
m = 0
'm will count the number of times everytime we learn that x is divisable by any number
If x <> 1 Then
'One is not a Prime number at all
For count = 2 To y
v = x Mod count
'when a number is divisable by another, mod will always be zero
If v = 0 Then
m = m + 1
End If
If m > 0 Then
txtTrue.Text = x & " " & "is NOT A PRIME NUMBER"
txtTrue.Text = x & " " & "is A PRIME NUMBER"
End If
txtTrue.Text = x & " " & "is NOT A PRIME NUMBER"
End If

End Sub
Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!