Q: What is the digital root of 516,663,641
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 516,663,641?
Answer: 2
Number | 516,663,639 | 516,663,640 | 516,663,642 | 516,663,643 |
Digital Root | 9 | 1 | 3 | 4 |