## Identify missing numbers in a range in excel

**Question:** How do I find missing numbers between 1-9 in a range?

1 3 4

5 6 7

8 8 3

**Answer:**

**Array formula in cell B8:**

If you have numbers between 5 and 32, change ROW($1:$9) to ROW($5:$32)

The formula won´t work if you have numbers above 1048576 (excel 2007). See this post:

Identify missing values in a column using excel formula

**How to create an array formula**

- Copy above array formula
- Select cell B8
- Click in formula bar
- Paste array formula in formula bar
- Press and hold Ctrl + Shift
- Press Enter

**Named ranges***
tbl *(B3:D5)

What is named ranges?

**Download excel example file.**

Missing numbers in a range.xls

(Excel 97-2003 Workbook *.xls)

**Functions in this article:**

**ROW(**reference**)** Returns the rownumber of a reference

**COUNTIF(**range,criteria**)**

Counts the number of cells within a range that meet the given condition

**SMALL(**array,k**)** Returns the k-th smallest row number in this data set.

**ROWS(**array**)** returns the number of rows in a reference or an array

**IF(**logical_test;[value_if:true];[value_if_false]**)
**Checks whether a condition is met, and returns one value if TRUE, and another value if FALSE

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I have a worksheet that has rows, each containing sequential groupings of values of "1" and "0" These alternate across 1800 colunms of data.

My question: how do I count the number of groupings of each? In other words, across those 1800 columns, how many arrays of value 1 and how many arrays of value 0 do I have?

Thanks.

Joe

Joe,

see this post:

Count the number of groupings of each value

thanks

Is there any difference to apply this formula in only one column (F2:F1093)? I´m trying to identify missing numbers in a list but I´m making something wrong.

Felipe,

Did you enter it as an array formula?