Digital Root
The sum of the individual digits of a number, repeating this process until we get a one-digit result.
Example: 3456
Sum the digits: 3 + 4 + 5 + 6 = 18
But 18 has two digits, not one! So we repeat the process: 1 + 8 = 9
Answer: the Digital Root of 3456 is 9
Note: we always end up with a number between 0 and 9.
- point
- point of sale (pos)
- point symmetry
- polar coordinates
- polygon
- polygonal number
- polyhedron
- polynomial
- population
- portfolio
- position
- positional notation
- positive
- pound
- power
- power function
- power series
- power set
- precision
- prime factor
- prime factorization
- prime number
- primitive function
- principal
- prism