3 ms·
It's a matter of preference. M = mega (in metric) = one million MM = two of the roman numeral M = one thousand thousand = one million. Both are correct.
by HEHENE 7y ago
It's a matter of preference.
M = mega (in metric) = one million
MM = two of the roman numeral M = one thousand thousand = one million.
Both are correct.
- newnewpdro 7y agoI see, so when people use nMM they're using roman numerals to indicate million units? TIL That seems rather spurious and ambiguous, considering people generally use nK for thousand units, and mixing roman numerals now makes metric nM a collision with thousands.
- jiveturkey 7y agoMM is a financial abbreviation. It used to be "the standard" but nowadays they also use M. Compare with the "M" in CPM, which is not the roman 'M' but the French 'Mille'. So, "M" is sometimes ambiguous. In this case it wouldn't be, but I always use mm or MM to mean million, and bn or BN to mean billion.
- kristianp 7y agoThe confusion is that they used small 'm', which in metric is a meter. "mm" is a millimeter in metric, 1/1000 of a meter.