Macro not working for conditional formatting

You have described two different outcomes, but you didn't say which outcome you want. What result do you want? And which one do you want to change--conditional formatting, or code?

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In my case, my file is a list of product price from different companies. 0 means no product found
So, I wanted to highlight the lowest prices in each row (ignoring the 0)

I tried the above formula,it doesnt work in my case.
Any advice on how i should write the IF part?
I also tried MIN(IF(ISNUMBER(A2:C2),IF(A2:C2>0,A2:C2))) but it doesn't worked.