Dr.NateNeph said:One habit that pays for itself: post the method alongside the number.
Filing a mild objection. Mild because I might be wrong; an objection because nobody has addressed the case that does not fit. I would resist the confidence. Half of what this board was certain about two years ago has since been quietly dropped, and nobody went back to correct the threads.
Ask again with the specifics and you will get a better answer than this one.