81 (number)
natural number
The Simple English Wiktionary has a definition for: eighty-one. |
Eighty-one is a number. It comes between eighty and eighty-two, and is an odd number. It is also a square number.
The Simple English Wiktionary has a definition for: eighty-one. |
Eighty-one is a number. It comes between eighty and eighty-two, and is an odd number. It is also a square number.