Q: What is the digital root of 644,228,135
A: 8
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 644,228,135?
Answer: 8
| Number | 644,228,133 | 644,228,134 | 644,228,136 | 644,228,137 |
| Digital Root | 6 | 7 | 9 | 1 |