Enter Number

Calculate the digit sum of 317

Calculate the reduced digit sum of 317

Add up 3 digits of 317:

Digit Sum → 3 + 1 + 7 = 11

Since our digit sum > 9:
repeat this process to get the reduced digit sum:
Our new number to evaluate is 11

Add up 2 digits of 11:

Digit Sum → 1 + 1 = 2

Since our digit sum ≤ 9:
we have our reduced digit sum

Final Answer


Digit Sum = 11
Reduced Digit Sum = 2