Q: What is the digital root of 16,578,387

 A: 9

Why is 9 the digital root of the number 16,578,387?

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 16,578,387?


Split the number up and add each digit together:


1 + 6 + 5 + 7 + 8 + 3 + 8 + 7 = 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 16,578,387?

Answer: 9


More Examples

Number 16,578,38516,578,38616,578,38816,578,389
Digital Root 7812

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