Q: What is the digital root of 666,788

 A: 5

Why is 5 the digital root of the number 666,788?

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 666,788?


Split the number up and add each digit together:


6 + 6 + 6 + 7 + 8 + 8 = 41

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

4 + 1 = 5

What is the digital root of number 666,788?

Answer: 5


More Examples

Number 666,786666,787666,789666,790
Digital Root 3467

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