Q: What is the digital root of 21,191,909
A: 5
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 21,191,909?
Answer: 5
| Number | 21,191,907 | 21,191,908 | 21,191,910 | 21,191,911 |
| Digital Root | 3 | 4 | 6 | 7 |