1 in Roman numerals

1 in Roman numerals is I.

1 in Roman numerals

Pick any whole number from 1 to 3,999.

1 = \text{I}

How to work it out

1
Take the biggest Roman value that fits, write its letter, subtract it, and repeat.
2
Here: 1 (I) = 1.
3
Joined together: I. (Four of the same letter in a row is never used: 4 is IV, 9 is IX, 40 is XL, 90 is XC, 400 is CD, 900 is CM.)

Value	Letters
1	I

What is 1 in Roman numerals?

How do you read I?

I = 1 = 1.