Q: What is the digital root of 312,420,555

 A: 9

Why is 9 the digital root of the number 312,420,555?

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 312,420,555?


Split the number up and add each digit together:


3 + 1 + 2 + 4 + 2 + 0 + 5 + 5 + 5 = 27

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

2 + 7 = 9

What is the digital root of number 312,420,555?

Answer: 9


More Examples

Number 312,420,553312,420,554312,420,556312,420,557
Digital Root 7812

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