[sjtgraham]

Mille, i.e. Latin for a thousand. Thus MM = 1000 x 1000 = 1,000,000.

I rarely see MM used to denote a million outside the financial world. I have never seen a job, for example listing remuneration as "circa 120M" meaning 120,000

[eli]

It's widely used in advertising/marketing. CPM is Cost Per Thousand.

[sjtgraham]

> I rarely see MM used to denote a million outside the financial world.

[eli]

Yes, MM is used with some frequency in advertising and marketing to denote million.

[ry0ohki]

Thanks, I've always wondered why people used MM, it made no sense to me.

[baru]

Wouldn't MM mean 2000 in Roman numerals? Like in MMXII. http://xkcd.com/927/