Well who am I to argue? Unless... MM is 2000 in Roman numerals. I honestly don't know where I got the 'MM' notation for a million, but I've seen it used, and used it myself, for years... I'm unable to paste a screenshot, so https://www.google.com/search?ei=G7-rX735ItHc9QOEvI5A&q=roman+numeral+mm+million&oq=roman+numeral+mm+million&gs_lcp=CgZwc3ktYWIQAzIICCEQFhAdEB46BAgAEEc6BwgAEMkDEAo6BAgAEAo6BggAEBYQHjoICAAQFhAKEB5Q7OkBWJHzAWCK9QFoAHACeACAAfQCiAH4C5IBBzAuNy4wLjGYAQCgAQGqAQdnd3Mtd2l6yAEIwAEB&sclient=psy-ab&ved=0ahUKEwj98smmpvrsAhVRbn0KHQSeAwgQ4dUDCA0&uact=5 here's a link anyway...