The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 4158.
4158 has 4 digits. The digits in 4158 are 4, 1, 5, and 8.
When you are asking for the sum of the digits of 4158, you are basically asking what is
4 plus 1 plus 5 plus 8?
Therefore, the sum of the digits in 4158 is as follows:
4 + 1 + 5 + 8 = 18
Sum of digits in 4159
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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