Q: What is the digital root of 121,100,121

 A: 9

Why is 9 the digital root of the number 121,100,121?

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 121,100,121?


Split the number up and add each digit together:


1 + 2 + 1 + 1 + 0 + 0 + 1 + 2 + 1 = 9


What is the digital root of number 121,100,121?

Answer: 9


More Examples

Number 121,100,119121,100,120121,100,122121,100,123
Digital Root 7812

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