Q: What is the digital root of 551,135,021
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 551,135,021?
Answer: 5
| Number | 551,135,019 | 551,135,020 | 551,135,022 | 551,135,023 |
| Digital Root | 3 | 4 | 6 | 7 |