Q: What is the digital root of 187,321,566

 A: 3

Why is 3 the digital root of the number 187,321,566?

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 187,321,566?


Split the number up and add each digit together:


1 + 8 + 7 + 3 + 2 + 1 + 5 + 6 + 6 = 39

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

3 + 9 = 12

The answer is more than one digit again, we need to add each digit one more time:

1 + 2 = 3

What is the digital root of number 187,321,566?

Answer: 3


More Examples

Number 187,321,564187,321,565187,321,567187,321,568
Digital Root 1245

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