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                         Private Sub Command1_Click()

                Dim no1 As Integer

                Dim no2 As Integer

                Dim i As Integer

                Dim flag As Boolean

                flag = False

               
                no1 = Val(Text1.Text)


                no2 = Val(Text2.Text)

               
                If no1 > 10 And no2 < 100 Then

                                While no1 <= no2

                                                For i = 2 To no1 \ 2

                                                                If no1 Mod i = 0 Then

                                                                                flag = True

                                                                End If

                                                Next

                                                If flag = True Then

MsgBox ("Either of the number is not prime")

End

                                                Else

                                                                cnt = cnt + 1

                                                                no3 = no1

                                                                no1 = no1 + 2

                                                                flag = False

                                                               
                                                End If

                                                If cnt = 2 Then

                                                                If no3 = no2 Then

                                                                                MsgBox "No1 and no2 are twin primes"

                                                                Else

                                                                                MsgBox "No1 and no2 are not twin primes"

                                                                End If

                                                                End

                                                End If

                                Wend

                End If

End Sub


Private Sub Text1_Click()

                Text1.Text = ""

End Sub


Private Sub Text2_Click()

                Text2.Text = ""

End Sub

1)Write a VB program to find out twin prime numbers between 10 to 100. Twin primes are defined to be two consecutive odd numbers, which are prime (Accept input through textbox and display result on form) e.g.: 11 and 13, 17 and 19 are twin prime numbers.

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