Name the least number for (popup.version)
CREATE TABLE table_2144389_8 (
    _number INTEGER,
    japanese_title VARCHAR
)
SELECT MIN(_number) FROM table_2144389_8 WHERE japanese_title = "君のそばで～ヒカリのテーマ～(PopUp.Version)"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Name the least number for (popup.version) ### Input: CREATE TABLE table_2144389_8 (
    _number INTEGER,
    japanese_title VARCHAR
) ### Response: SELECT MIN(_number) FROM table_2144389_8 WHERE japanese_title = "君のそばで～ヒカリのテーマ～(PopUp.Version)"