The difference is that hundreds of thousands of means at least 200,000, but probably more. In the same way, if you wanted to generally describe,. Which word choice is correct?
As the sources below state, the author—technically—should use hundred in this case. People use it for amounts such as 472. They won hundreds of dollars;
Hundreds doesn't have to refer to even multiples of 100 (as in 300, 400, etc); I found in some dictionaries that tens of is actually not correct. The question title refers to expressing thousands using multiples of hundreds, like saying twelve hundred instead of one thousand two hundred this is somehow new to me. I did no prior research.
Or the company saved several hundreds of thousands of dollars. Spacex and oneweb, a communications firm, plan to launch satellites in their thousands, not hundreds. what does it mean by in their thousands? The phrase hundreds more of (red line) was frequent in the 1800's, more hundreds of (blue line) in the early 1900's, and few hundred more (green line) at the moment. Five hundreds to be precise!
If i'm not mistaken, tens of means 10 to 99 and hundreds of means 100 to 999. I also found that hundreds of coul.