Q: What is the digital root of 87,866,424

 A: 9

Why is 9 the digital root of the number 87,866,424?

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 87,866,424?


Split the number up and add each digit together:


8 + 7 + 8 + 6 + 6 + 4 + 2 + 4 = 45

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

4 + 5 = 9

What is the digital root of number 87,866,424?

Answer: 9


More Examples

Number 87,866,42287,866,42387,866,42587,866,426
Digital Root 7812

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