Q: What is the digital root of 100,505,124

 A: 9

Why is 9 the digital root of the number 100,505,124?

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 100,505,124?


Split the number up and add each digit together:


1 + 0 + 0 + 5 + 0 + 5 + 1 + 2 + 4 = 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 100,505,124?

Answer: 9


More Examples

Number 100,505,122100,505,123100,505,125100,505,126
Digital Root 7812

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