Q: What is the digital root of 155,991,138
A: 6
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 155,991,138?
Answer: 6
| Number | 155,991,136 | 155,991,137 | 155,991,139 | 155,991,140 |
| Digital Root | 4 | 5 | 7 | 8 |