Q: What is the digital root of 666,858

 A: 3

Why is 3 the digital root of the number 666,858?

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.

How do you calculate the digital root of 666,858?


Split the number up and add each digit together:


6 + 6 + 6 + 8 + 5 + 8 = 39

If the answer is more than one digit, you would add each digit of the answer together again:

3 + 9 = 12

The answer is more than one digit again, we need to add each digit one more time:

1 + 2 = 3

What is the digital root of number 666,858?

Answer: 3


More Examples

Number 666,856666,857666,859666,860
Digital Root 1245

Explore more about the number 666,858:


Ask a Question