Q: What is the digital root of 100,666,040

 A: 5

Why is 5 the digital root of the number 100,666,040?

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 100,666,040?


Split the number up and add each digit together:


1 + 0 + 0 + 6 + 6 + 6 + 0 + 4 + 0 = 23

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

2 + 3 = 5

What is the digital root of number 100,666,040?

Answer: 5


More Examples

Number 100,666,038100,666,039100,666,041100,666,042
Digital Root 3467

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