Q: What is the digital root of 28,488,663

 A: 9

Why is 9 the digital root of the number 28,488,663?

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 28,488,663?


Split the number up and add each digit together:


2 + 8 + 4 + 8 + 8 + 6 + 6 + 3 = 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 28,488,663?

Answer: 9


More Examples

Number 28,488,66128,488,66228,488,66428,488,665
Digital Root 7812

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