What is the highest number any of the players were picked at? 
CREATE TABLE table_21321804_3 (pick__number INTEGER)
SELECT MAX(pick__number) FROM table_21321804_3
### Context: CREATE TABLE table_21321804_3 (pick__number INTEGER) ### Question: What is the highest number any of the players were picked at?  ### Answer: SELECT MAX(pick__number) FROM table_21321804_3