M is 1) the Roman numeral for one thousand; 2) the International Standard (ISO) defines a million should be abbreviated to M. (Refer to the Metric System Prefix)
Related Definitions in the Project: The Property and Unit
M is 1) the Roman numeral for one thousand; 2) the International Standard (ISO) defines a million should be abbreviated to M. (Refer to the Metric System Prefix)
Related Definitions in the Project: The Property and Unit