A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 x 99.
Find the largest palindrome made from the product of two 3-digit numbers.
Sub Euler004()
    Dim Rslt As Long, Nbr1 As Long, Nbr2 As Long, ProcTime As Single
    ProcTime = Timer
    For Nbr1 = 100 To 999
        For Nbr2 = 100 To 999
            Dim OneRslt As Long
            OneRslt = Nbr1 * Nbr2
            If StrReverse(OneRslt) = OneRslt Then Rslt = Max(Rslt, OneRslt)
            Next Nbr2
        Next Nbr1
    Debug.Print Rslt, Timer - ProcTime
    End Sub