Q: What is the digital root of 331,311,135

 A: 3

Why is 3 the digital root of the number 331,311,135?

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 331,311,135?


Split the number up and add each digit together:


3 + 3 + 1 + 3 + 1 + 1 + 1 + 3 + 5 = 21

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

2 + 1 = 3

What is the digital root of number 331,311,135?

Answer: 3


More Examples

Number 331,311,133331,311,134331,311,136331,311,137
Digital Root 1245

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