Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_27988281_1 (production_code INTEGER, written_by VARCHAR)
### Question:
What is the production code of the episode written by Jeff Filgo?
### Answer:
SELECT MAX(production_code) FROM table_27988281_1 WHERE written_by = "Jeff Filgo"