The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 4197.
4197 has 4 digits. The digits in 4197 are 4, 1, 9, and 7.
When you are asking for the sum of the digits of 4197, you are basically asking what is
4 plus 1 plus 9 plus 7?
Therefore, the sum of the digits in 4197 is as follows:
4 + 1 + 9 + 7 = 21
Sum of digits in 4198
See if you can calculate the sum of the digits in the next number on our list before you go here.
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