Where are all the ones on the one dollar bill?

Answer 1

For just the number 1 and not the word one, it can be found in all four corners on both the front and back of the bill. If you include the word, it's on the front right below Washington's portrait and to the right of Washington imposed over the U.S. Treasury seal, then on the back in all four corners, in the center, and again on the bottom. That's a total of 16.