Q: What is the digital root of 155,421,342
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:
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 155,421,342?
Answer: 9
| Number | 155,421,340 | 155,421,341 | 155,421,343 | 155,421,344 |
| Digital Root | 7 | 8 | 1 | 2 |