I need help with the following conditional formatting parameter:

In column N I have the numbers of the months and in column M I have a series of numbers. In column N, I want to conditional format the row of column N which contains the highest number of column M.

N M
1 8300
2 6450
3 7689
4 9956
5 8123
6 7719

In this case the highest number is 9956 so I need conditional format 4 in column N.

Thanks for any help.