Q: What is the digital root of 89,740,021

 A: 4

Why is 4 the digital root of the number 89,740,021?

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 89,740,021?


Split the number up and add each digit together:


8 + 9 + 7 + 4 + 0 + 0 + 2 + 1 = 31

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

3 + 1 = 4

What is the digital root of number 89,740,021?

Answer: 4


More Examples

Number 89,740,01989,740,02089,740,02289,740,023
Digital Root 2356

Explore more about the number 89,740,021:


Ask a Question