How do you write 3,000,000 in words?

How to write $3,000,000 on a check

The most common reason to write 3,000,000 as three million would be if you're writing a check for $3,000,000. Just below the "pay to the order of" line, you would write the dollar amount in words. In this case, you might write "three million and 00/100 dollars."