What number is the Roman numeral LM?
LM doesn't exist as a Roman numeral. The L and the M would never
go together in that order. The L before the M would be 950 but 950
as a Roman numeral is CML. C is 100 and M is 1000. Because the C is
before the M it subtracts making 900. Then the L (50) is added to
make 950.