To identify an outlier from a dot plot, we would generally look for a data point that is significantly different from the rest of the data. Outliers are usually defined as points that are much lower or higher than the majority of the data, typically more than 1.5 times the interquartile range (IQR) from the quartiles in a box plot context, or simply far apart in a dot plot.
However, since you did not provide the actual dot plot or list of numbers, I can't directly identify which number is the outlier. If you can describe the dot plot or provide specific numbers represented in it, I'd be happy to help you analyze it!