Q: What is the digital root of 21,765,821

 A: 5

Why is 5 the digital root of the number 21,765,821?

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 21,765,821?


Split the number up and add each digit together:


2 + 1 + 7 + 6 + 5 + 8 + 2 + 1 = 32

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

3 + 2 = 5

What is the digital root of number 21,765,821?

Answer: 5


More Examples

Number 21,765,81921,765,82021,765,82221,765,823
Digital Root 3467

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