Q: What is the digital root of 15,531,579

 A: 9

Why is 9 the digital root of the number 15,531,579?

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 15,531,579?


Split the number up and add each digit together:


1 + 5 + 5 + 3 + 1 + 5 + 7 + 9 = 36

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

3 + 6 = 9

What is the digital root of number 15,531,579?

Answer: 9


More Examples

Number 15,531,57715,531,57815,531,58015,531,581
Digital Root 7812

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