Digital Root - Significance and Formula of The Digital Root

Significance and Formula of The Digital Root

It helps to see the digital root of a positive integer as the position it holds with respect to the last multiple of nine less than it. For example, the digital root of 11 is 2, which means that 11 is the second number after 9. The digital root of 2035 is 1, which means that 2035-1 is a multiple of nine. A digital root of nine means that the number is a multiple of nine, which is equivalent to a digital root of 9.

With this in mind the digital root of a positive integer may be defined by using Floor function, as

Read more about this topic:  Digital Root

Famous quotes containing the words significance, formula and/or root:

    To grasp the full significance of life is the actor’s duty, to interpret it is his problem, and to express it his dedication.
    Marlon Brando (b. 1924)

    But suppose, asks the student of the professor, we follow all your structural rules for writing, what about that “something else” that brings the book alive? What is the formula for that? The formula for that is not included in the curriculum.
    Fannie Hurst (1889–1968)

    At the root of all these noble races, the beast of prey, the splendid blond beast prowling greedily in search of spoils and victory, cannot be mistaken.
    Friedrich Nietzsche (1844–1900)