Yes, your task is easy to solve. But you need to slightly expand the set of functions of Calc with the help of this extension - **ListOK**

After installing this extension in the Add-In category of the Function Wizard, several additional functions will appear, the names of which begin with *LST*

All of them are designed to handle lists of natural numbers, exactly as shown in your screenshot.

The **LSTARR()** function will collect all values from the specified range into a single list and for your cells it will turn out `4, 10, 31, 44, 45, 56, 64, 72, 74, 90`

. This is a string, it is simply impossible to apply the MIN() function to it, as pointed out by a respected colleague of @Zizi64.

Therefore, use another function provided by this extension - **LSTVAL()**. Its result is an array of numbers that go into the string. The **MIN()** function can be applied to this array and for your example we will get the result `4`

The **LSTIN()** function will check each cell - is 4 in the list of values for this cell? Apply conditional formatting to the range of your cells and hilight the cells with the minimum - the problem is solved

**Update.** After discussing the solution with distinguished colleague @mikekaganski , I came to the conclusion that I misunderstood your desire as stated in the question. To find the cell with the minimum value in a row, the formatting condition must refer not to the entire range, but only to the cells of the current row. That is, the formula should be like this

```
LSTIN(MIN(LSTVAL(LSTARR($B3:$C3)));B3)
```

or even like this

`LSTIN(MIN(LSTVAL(LSTARR(3:3)));B3)`