Q: What is the digital root of 402,616,398

 A: 3

Why is 3 the digital root of the number 402,616,398?

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 402,616,398?


Split the number up and add each digit together:


4 + 0 + 2 + 6 + 1 + 6 + 3 + 9 + 8 = 39

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

3 + 9 = 12

The answer is more than one digit again, we need to add each digit one more time:

1 + 2 = 3

What is the digital root of number 402,616,398?

Answer: 3


More Examples

Number 402,616,396402,616,397402,616,399402,616,400
Digital Root 1245

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