Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the lowest episode number that had 4.03 million viewers?

### Inputs:
table_name: table, columns: ['Episode #', 'Title', 'Directed by', 'Written by', 'Originalairdate', 'Viewers (millions)']

### Response:
SELECT MIN Episode # FROM table WHERE Viewers (millions) = 4.03