Q: What is the digital root of 21,002,400
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:
What is the digital root of number 21,002,400?
Answer: 9
Number | 21,002,398 | 21,002,399 | 21,002,401 | 21,002,402 |
Digital Root | 7 | 8 | 1 | 2 |