Q: What is the digital root of 646,430,007

 A: 3

Why is 3 the digital root of the number 646,430,007?

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 646,430,007?


Split the number up and add each digit together:


6 + 4 + 6 + 4 + 3 + 0 + 0 + 0 + 7 = 30

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

3 + 0 = 3

What is the digital root of number 646,430,007?

Answer: 3


More Examples

Number 646,430,005646,430,006646,430,008646,430,009
Digital Root 1245

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