Q: What is the digital root of 15,100,666

 A: 7

Why is 7 the digital root of the number 15,100,666?

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 15,100,666?


Split the number up and add each digit together:


1 + 5 + 1 + 0 + 0 + 6 + 6 + 6 = 25

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

2 + 5 = 7

What is the digital root of number 15,100,666?

Answer: 7


More Examples

Number 15,100,66415,100,66515,100,66715,100,668
Digital Root 5689

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