Add/Sum Each Digit In Long Number

Oct 17, 2006

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.


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...)?

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Seperate 2 Digit Number Into 2 Single Digit Numbers

Apr 3, 2008

I know you can take a number from one cell and combine it with number from another cell and make it one number. What I need to do is the reverse. Take a two digit number in a cell and separate it into single digits in two cells. If you have the number 50 in a cell, then is there a formula that will take the 5 and put it in cell and take the 0 and put it in the cell beside it?

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Mar 2, 2009

I have a column of 6 digit numbers in excel, and I need to remove the last digit from each number, turning it into a 5 digit number. No rounding, just simply remove the last digit. Each number is different. Does anyone know how to quickly and efficiently remove the last digit from each number? I can convert to alphanumeric string if need be...

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Check Digit For 8 Digit Number

Jun 13, 2014

How to calculate a check digit in excel. The details to calculate this are as follows:

All variables in the calculation are positive integers.

We take each integer of the pro number and multiply it by a value and sum them to get a total.

An Example: 8 Digit Pro Number: 66988757
Pro Number: 6 6 9 8 8 7 5 7
Position in the Pro Number: 1 2 3 4 5 6 7 8
Multiply each digit in the pro number by (10-position) in the number, to achieve a sum.

Using our example pro again:
6*(10-1) + 6*(10-2) + 9*(10-3) + 8*(10-4) + 8*(10-5) + 7*(10-6) + 5*(10-7) + 7*(10-8)
6*9 + 6*8 + 9*7 + 8*6 + 8*5 + 7*4 + 5*3 + 7*2
54+ 48+ 63+48+40+28+15+14 = 310
Take the Sum of the previous calculation and divide it by 11
310/11 = 28

(Actually, it's 28.181818, but since we're working with integers, we truncate everything behind the decimal).

Figure a remainder by multiplying the quotient by 11 and subtracting from the sum.
Remainder = 310 - (28*11) ---> Remainder = 310 - 308 ----> Remainder = 2
Check Digit = 11- Remainder
Check Digit = 11 - 2 ---> Check Digit = 9
Note: if the check digit is 10 or 11, need to subtract 10 from the Check Digit.

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Nov 22, 2007

I've tried everything I know (which isnt that much to be honest. lol). Ive tried the frequency formula but that doesn't work the way I want it - I think its probably the wrong formula to use. I've also tried a pivot table but they always vex me. If a pivot table IS the way to go, could someone talk me through it step by step? (*the wizard is just as confusing as doing it yourself I find) ....

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Jul 9, 2014

I received a request from a coworker regarding custom formatting some numbers in his spreadsheet. Those numbers are serial numbers of 20 characters long. Sometimes in my files I use this custom number formatting ###0 and its enough for the data I handle. But when I tried to use it in his spreadsheet, the following shows:


The cell must look like this: 08456891070060510302

The reason to have it like this is due to a Delivery Program requirement to deliver Set-top Units for repair. The Delivery Program do not recognize other format than the above. My coworker takes the data from a spreadsheet, and the spreadsheet needs a custom number format to display the correct number.

find a custom number format to be able to display as my coworker need it??

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Is A Number Or A Digit

Jun 22, 2006

how you can determine if a cel value is a number or a digit

It is actually for a column to determine if it has a heading or not and acordingly y have to count the rows off that "current region" and put some values with a formula next to this column.

Y was testing an expression with this

msg = IIf(target.End(xlUp).Value = "X", "is this a LETTER", "is this a DIGIT")

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Jun 9, 2014

Well I want to add few numbers in a few number for example I have ten columns containing few cell numbers and i want to add 92 my country code with it. I have tried this by using replace formula but in result it comes in text format from which i cannot use another formula unless text format is removed and for that i have to do it one by on in every single cell. I have attached a sample sheet.

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Dec 13, 2013

I have the following dates in a column and need to convert them to the short date format:

91113 (Sept 11, 2013)
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122612 (Dec 26, 2012)
40413 (April 04, 2013)

Those are just some examples. When I convert these as is I get dates that are really far in the future. Some dates are 5 digit and some are 6.

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Aug 19, 2014

I have the following

[Code] .....

AK5 value will be 2 - 21.

I need it to display




or whatever the number is after A1D, but when AK8 = a value of 1 or 2 or 3...... It comes back as A1D1 or A1D2... How ca I keep the two digits in AK8 to stay and put the value the way I want in AE5 ...

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Jan 26, 2009

I'm trying to figure out how to setup a worksheet to find the most common 2 digit numbers going vertically from the bottom(cold) to the top(hot) it would consist of 90 digits 0 thru 9

it would look like this

4 0 3 9 0 4 3 3 2
9 2 5 6 5 6 9 6 6
8 9 9 3 1 0 2 9 8
1 6 7 5 9 9 8 2 5
2 7 2 2 2 8 5 1 3
0 1 4 7 4 7 6 0 9
3 5 6 4 3 3 0 4 4
7 8 8 1 8 5 7 8 7
5 4 1 8 6 1 1 5 1
6 3 0 0 7 2 4 7 0

each vertical line would be considered weeks 9 thru 1. week 9 would be the first vertical line of digits on the left. it could also contain the most common 2 digits horizontally. Both 2 digit values would be color coded ex. blue equals most common 2 digit horizontally and green equals vertically. I would also like to color code the most common 2 digit value diagonally as long as it is the most common of either the vertical or horizontal 2 digit. Each number is seperate on the worksheet they would not be pairs. im using excell 2003.

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Jun 26, 2009

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e.g. 143 -> 145
e.g. 1037 -> 1039

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Feb 4, 2010

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Jul 13, 2009

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This would be the perfect end result:
autECLSession.autECLPS.SendKeys "03"

and for over 10

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Feb 20, 2010

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I have tried =RIGHT(B3,1) and it returns a 4 but I cannot get another formula to recognize it as a number.
It shows up in the cell on the left side as text would and if I format it as a number nothing happens it is still on the left and the formula does not work.

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Oct 14, 2013

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Feb 22, 2014

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Jul 7, 2012

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Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Count 1 Then Exit Sub
If Intersect(Target, Range("I21:I24")) Is Nothing Then Exit Sub
Application.ScreenUpdating = False
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Target.Value = vbNullString...................

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i dont need the time, so the last part ("120000[0:GMT]") isn't necessary.

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002 = sequence of entry

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What I need to do is the following:

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The conversion should be as follows:


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I have two Columns of 4 digit numbers (24 hour clock format). I need these numbers to be in Time Format. Formatting the Columns or even individual cells seems to do nothing.

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I have attached a copy of my file, The numbers in question are on sheet "iCalender" 8th sheet accross.
Columns "start Time" and "End Time"

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5th January 2014 - Copy.xlsm

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