What is the production number for episode 23?
CREATE TABLE table_2370579_1 (prod__number INTEGER, episode__number VARCHAR)
SELECT MIN(prod__number) FROM table_2370579_1 WHERE episode__number = 23
### Context: CREATE TABLE table_2370579_1 (prod__number INTEGER, episode__number VARCHAR) ### Question: What is the production number for episode 23? ### Answer: SELECT MIN(prod__number) FROM table_2370579_1 WHERE episode__number = 23