Q: What is the digital root of 403,409

 A: 2

Why is 2 the digital root of the number 403,409?

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 403,409?


Split the number up and add each digit together:


4 + 0 + 3 + 4 + 0 + 9 = 20

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

2 + 0 = 2

What is the digital root of number 403,409?

Answer: 2


More Examples

Number 403,407403,408403,410403,411
Digital Root 9134

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