Q: What is the digital root of 138,648,618

 A: 9

Why is 9 the digital root of the number 138,648,618?

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 138,648,618?


Split the number up and add each digit together:


1 + 3 + 8 + 6 + 4 + 8 + 6 + 1 + 8 = 45

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

4 + 5 = 9

What is the digital root of number 138,648,618?

Answer: 9


More Examples

Number 138,648,616138,648,617138,648,619138,648,620
Digital Root 7812

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