Answer
Success!
Digit Sum = 7
Reduced Digit Sum = 7
Reduced Digit Sum = 7
↓Steps Explained:↓
Calculate the digit sum of 421
Calculate the reduced digit sum of 421
Add up 3 digits of 421:
Digit Sum → 4 + 2 + 1 = 7
Since our digit sum ≤ 9:
we have our reduced digit sum
Final Answer
Digit Sum = 7Reduced Digit Sum = 7
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