Hi there,

Here I have a simple problem, but no clue how to go forward in Excel...

I have a cell with a number which is a result of several previous sums. It's a number with 8 to 11 digits. For example: 878567663.

I need to add each digit of the number, and then add again the result until I end up with a single digit. In the above example it'd be (8+7+8+5+6+7+6+6+3=56), then (5+6=11), then (1+1=2) and put the end result (2) in a cell

My main doubt is that I don't know how to use a simple "do while" type structure in Excel to achieve the above.

Questions:

1.) How do I create a formula to do that?. I have seen solutions in this board that let me add each digit but that's it... I need to "reduce" it until only one digit is left...

2.) What about if the lenght of the number is not always the same (fe. in one cell is 8, in another is 11, the next one is again 8...)?

I am not sure if my explanations are clear enough... please let me know.

Thanks a lot in advance for your help.

Here I have a simple problem, but no clue how to go forward in Excel...

I have a cell with a number which is a result of several previous sums. It's a number with 8 to 11 digits. For example: 878567663.

I need to add each digit of the number, and then add again the result until I end up with a single digit. In the above example it'd be (8+7+8+5+6+7+6+6+3=56), then (5+6=11), then (1+1=2) and put the end result (2) in a cell

My main doubt is that I don't know how to use a simple "do while" type structure in Excel to achieve the above.

Questions:

1.) How do I create a formula to do that?. I have seen solutions in this board that let me add each digit but that's it... I need to "reduce" it until only one digit is left...

2.) What about if the lenght of the number is not always the same (fe. in one cell is 8, in another is 11, the next one is again 8...)?

I am not sure if my explanations are clear enough... please let me know.

Thanks a lot in advance for your help.

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