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_1620397_5 (series_sorted VARCHAR, _number VARCHAR)
### Question:
What series was sorted at number 3?
### Answer:
SELECT series_sorted FROM table_1620397_5 WHERE _number = 3