Q: What is the digital root of 400,554,009
A: 9
The digital root of a number is calculated by splitting the digits of a number and then adding them together. You keep splitting and adding the digits until you reach a single positive number.
Split the number up and add each digit together:
If the answer is more than one digit, you would add each digit of the answer together again:
What is the digital root of number 400,554,009?
Answer: 9
| Number | 400,554,007 | 400,554,008 | 400,554,010 | 400,554,011 |
| Digital Root | 7 | 8 | 1 | 2 |