Q: What is the digital root of 72,166,421
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 72,166,421?
Answer: 2
Number | 72,166,419 | 72,166,420 | 72,166,422 | 72,166,423 |
Digital Root | 9 | 1 | 3 | 4 |