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Public Class Form1 Dim P, N As Byte Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click P = InputBox("ENTER NUMBER:") For N = 2 To (P - 1) If P Mod N = 0 Then Exit For End If Next If N = P Then MsgBox("PRIME NUMBER.") Else MsgBox("NOT A PRIME NUMBER.") End If End Sub End Class |