The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 7781.
7781 has 4 digits. The digits in 7781 are 7, 7, 8, and 1.
When you are asking for the sum of the digits of 7781, you are basically asking what is
7 plus 7 plus 8 plus 1?
Therefore, the sum of the digits in 7781 is as follows:
7 + 7 + 8 + 1 = 23
Sum of digits in 7782
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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