How to identify if a number string is all repeating digits - excel

Using Excel 2010, I was looking for the easiest way to add a check column that will identify "dummy numbers" by checking if a number string is all repeating digits (i.e. serial number 99999999).
I attempted to use =MOD() and divide by digits 1,2,3...9 but was unsuccessful.

I found this formula to be exactly what I needed so I thought I would share for anyone else looking.
=VALUE(REPT(LEFT(A1,1),LEN(A1)))=A1

Related

How to get rid off only certain zeros formula?

Ok so I had a nice formula until a problem came along. Basically I needed to get rid off a zeros in the middle of a 10 characters String/Range i.e AB00005879 to do that I have used formula SUBSTITUTE(NameRange,"0","") which gave me nice AB5879 solution. Sometimes the number at the end would only be 3 digit long AB00000975 so my formula would give me AB975 All great until I stumble a problem. Some of the strings came in a form of i.e. AB00004020 So my formula extracted every zero leaving me with AB42. Is there a way to extract only first four zeros in a middle an always keep the number at the and? so the last scenario would look like AB4020. Thanks in advance
SUBSTITUTE(NameRange,"0",""))
If you always have two characters at the start and then some zeros and then some numbers, all of which you want to keep, this should work
=LEFT(A1,2) & VALUE(RIGHT(A1,LEN(A1)-2))
EDIT #2
If your string always starts with two letters such as AB following by a random number of zeros and then a number string that you want to keep, try
=LEFT(A1,2)&RIGHT(A1,11-AGGREGATE(15,6,ROW($3:$10)/(--MID(A1,ROW($3:$10),1)>0),1))
Replace A1 with your actual case.

Excel: Extracting a full number from a cell - bringing it all together :)

First off, thank you to all how have helped get me to this point. I'm so close! On to the scenario, which I apologize in advance is a bit of a work in progress.
I have text in a cell and I need to extract a number. The tricky part is there are various situations to address.
The number may immediately follow a "#" and could vary in length. People on Stack Overflow helped me with coming up with this which works great:
MID(B2,(FIND("#",B2,1)+1),FIND(" ",B2,FIND("#",B2,1)+1)-FIND("#",B2,1))
That was a huge leap forward, but there are also situations where there is no # sign and the cell might have "abc (1205) 645 chan", where I need to extract the 645.
I'm using this, below, in conjunction with an on error statement for when there is no "#"
TRIM(MID(B53,(FIND(" " &{"1","2","3","4","5","6","7","8","9"},B53,1)),FIND(" ",B53,FIND({"1","2","3","4","5","6","7","8","9"},B53,1))-FIND({"1","2","3","4","5","6","7","8","9"},B53)))
So I use the first Mid/Find to avoid the (1205) and find the next " x" where x is a number. The problem is it seems I have trouble when the number I'm searching for has 1 or 3+ numbers in it, but if it has 2 I return the value just fine.
It seems I'm very close but just not there yet.
This formula will return the number that follows either a # or a ) in your string. If that pattern does not exist, it will return a #NUM!` error
=AGGREGATE(14,6,--MID(A1,MIN(FIND({"#",")"},A1&"#)"))+1,{1,2,3,4,5}),1)
Note the array constant as the num_chars argument of the MID function. The maximum number should be at least the largest number of digits (or decimal + digits) plus any spaces between the delimiter and the first digit, that might be expected to be found.
EDIT: If your version of Excel is prior to 2010, and does not have the AGGREGATE function, you may use this array-entered formula instead, so long as the values to be returned will be positive numbers:
=MAX(IFERROR(--MID(A1,MIN(FIND({"#",")"},A1&"#)"))+1,{1,2,3,4,5}),0))
This formula must be entered by holding down ctrl+shift while hitting enter

Excel: generate specific length string reference

I've found some tools that can do what I want, but despite trying various options I can't work out how to put them in my existing formula!
I'm trying to generate an invoice reference number, which would look like 'ABC000012' - with the first row being ABC000001 and increasing in number as each row is added. I can currently generate 'ABC1' and so on, but can't work out how to add the preceding 0s.
I'm currently using CONCATENATE as follows:
=IF(ISBLANK(B2),,CONCATENATE("ABC",(ROW(1:1))))
What do I need to add to this, and where, in order to get the references I'm looking for?
I'm also happy to be advised that I should change the whole formula if there's something different that will work better
Thanks
Use TEXT() to set the preceding 0:
=IF(ISBLANK(B2),"",CONCATENATE("ABC",TEXT(ROW(1:1),"000000")))
=IF(ISBLANK(B2),"","ABC"&RIGHT("000000"&ROW(1:1),6))
This is based off Scott Craner's answer. The difference is that is will limit the number of digits in your invoice to 6 characters. if you want it to always be 8 characters long change the 6 to an 8 and increase the number of 0 between the " ". Alternatively you could also do:
=IF(ISBLANK(B2),"","ABC"&RIGHT(rept(0,6)&ROW(1:1),6))
In the above formula to change the number of digits n the invoice number, you would need to change both 6's
Caveat:
If there is a blank cell in the middle of your list, that number will be skipped for each blank cell. To avoid this, you will need a different counting method than row(1:1).

How to remove 1 character from a column in excel

I have a column in my Excel file which contains different values. All these values begin with a letter and continues with a number.
I would like to know how to remove that letter and obtain only the number. Keep in mind that each value can have a different length.
Thanks
You can use something like this
=MID(A1,2,LEN(A1)-1)
you could do it with
=SUBSTITUTE(A1,LEFT(A1),"")
or
=RIGHT(A1,LEN(A1)-1)
There are countless ways to do that...
use simple function in excel itself
=left(cellname,no. of charcters)
=left(A1,8) will give only first left characters and same can be used right/mid

Excel Number Formatting

I'm currently working on a sheet that contains part numbers in it. I'd like them to be formatted like this:
####-#####-XX
Where #s can be letters or numbers, #s are numbers, and Xs are letters.
I run into two problems while doing this. The first is that I can't figure out how to handle text and numbers at the same time in the Custom Format dialog box. The second is that occasionally a part number will have 3 letters after the second hyphen rather than 2, and I can't figure out how I should structure the condition to differentiate between the two formats.
How can I handle numbers and text at the same time when creating a custom format, and how can I add the condition described above (based on character numbers or something)?
Thanks.
If can't be achieved with custom formatting then a formula such as below may suit:
=LEFT(A1,4)&"-"&MID(A1,5,5)&"-"&RIGHT(A1,LEN(A1)-9)
If the middle number section has to be 5 digits, use
#-0000#-XX
But I don't think number formats are designed to handle Alphanumeric entries, and I can't help you with those X's

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