On April 17th, 1790, Benjamin Franklin was born.
The multiplicative digital root of a positive integer n is found by multiplying the digits of n together , then repeating this operation until only a single digit remains .. multiplying. multiplication. digital root. digital root. This single-digit number is called the multiplicative digital root of n.. digital root. digital root. Multiplicative digital roots depend upon the base in which n is written .. base. radix. If the term is used without qualification , it is assumed that n is written in base 10 .. base. radix. Multiplicative digital roots are the multiplicative equivalent of digital roots .