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

### Instruction:
How many product # have episode 1?

### Inputs:
table_name: table, columns: ['Episode #', 'Prod #', 'Title', 'Directed by', 'Written by', 'Originalairdate']

### Response:
SELECT MAX Prod # FROM table WHERE Episode # = 1