Q: What is the digital root of 212,242,221

 A: 9

Why is 9 the digital root of the number 212,242,221?

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 212,242,221?


Split the number up and add each digit together:


2 + 1 + 2 + 2 + 4 + 2 + 2 + 2 + 1 = 18

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

1 + 8 = 9

What is the digital root of number 212,242,221?

Answer: 9


More Examples

Number 212,242,219212,242,220212,242,222212,242,223
Digital Root 7812

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