Thread: do you use commas when writing out the word name of a number?

another dumb question

No, not if you are referring to expressing a number in words like nine billion one hundred ninety-two million six hundred thirty-one thousand seven hundred seventy.

darn i have alot of commas to erace now

Originally Posted by ArchitecturalEngineer

another dumb question

Not a dumb question. I generally use commas to keep the reader from getting confused and make it easier to read.

No but then I always use scientific or engineering notation to avoid confusion.

For example 1 billion can be either 10^9 or 10^12 depending on which system you use