Q: What is the digital root of 1,089

 A: 9

Why is 9 the digital root of the number 1,089?

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 1,089?


Split the number up and add each digit together:


1 + 0 + 8 + 9 = 18

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

1 + 8 = 9

What is the digital root of number 1,089?

Answer: 9


More Examples

Number 1,0871,0881,0901,091
Digital Root 7812

Explore more about the number 1,089:


Ask a Question