Q: What is the digital root of 21,312,551
A: 2
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 21,312,551?
Answer: 2
Number | 21,312,549 | 21,312,550 | 21,312,552 | 21,312,553 |
Digital Root | 9 | 1 | 3 | 4 |