Q: What is the digital root of 15,720,840

 A: 9

Why is 9 the digital root of the number 15,720,840?

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 15,720,840?


Split the number up and add each digit together:


1 + 5 + 7 + 2 + 0 + 8 + 4 + 0 = 27

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

2 + 7 = 9

What is the digital root of number 15,720,840?

Answer: 9


More Examples

Number 15,720,83815,720,83915,720,84115,720,842
Digital Root 7812

Explore more about the number 15,720,840:


Ask a Question