Q: What is the digital root of 21,540,720
A: 3
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 21,540,720?
Answer: 3
| Number | 21,540,718 | 21,540,719 | 21,540,721 | 21,540,722 |
| Digital Root | 1 | 2 | 4 | 5 |