Q: What is the digital root of 6,643,816

 A: 7

Why is 7 the digital root of the number 6,643,816?

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 6,643,816?


Split the number up and add each digit together:


6 + 6 + 4 + 3 + 8 + 1 + 6 = 34

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

3 + 4 = 7

What is the digital root of number 6,643,816?

Answer: 7


More Examples

Number 6,643,8146,643,8156,643,8176,643,818
Digital Root 5689

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