Q: What is the digital root of 421,515,255
A: 3
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 421,515,255?
Answer: 3
Number | 421,515,253 | 421,515,254 | 421,515,256 | 421,515,257 |
Digital Root | 1 | 2 | 4 | 5 |