Q: What is the digital root of 638,406,869

 A: 5

Why is 5 the digital root of the number 638,406,869?

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 638,406,869?


Split the number up and add each digit together:


6 + 3 + 8 + 4 + 0 + 6 + 8 + 6 + 9 = 50

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

5 + 0 = 5

What is the digital root of number 638,406,869?

Answer: 5


More Examples

Number 638,406,867638,406,868638,406,870638,406,871
Digital Root 3467

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