Fatto generale: 4071 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4071 is the number of ways to color the vertices of a triangle with 23 colors, up to rotation.
Trivia: 4071 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: February 22nd is the day in 1889 that President Grover Cleveland signs a bill admitting North Dakota, South Dakota, Montana and Washington as U.S. states.