Q: What is the digital root of 21,139,052

 A: 5

Why is 5 the digital root of the number 21,139,052?

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 21,139,052?


Split the number up and add each digit together:


2 + 1 + 1 + 3 + 9 + 0 + 5 + 2 = 23

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

2 + 3 = 5

What is the digital root of number 21,139,052?

Answer: 5


More Examples

Number 21,139,05021,139,05121,139,05321,139,054
Digital Root 3467

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