Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Week | Date | Opponent | Result | Venue | Attendance |
| --- | --- | --- | --- | --- | --- |
| 1.0 | September 12, 1976 | San Francisco 49ers | L 26–14 | Lambeau Field | 54628.0 |
| 2.0 | September 19, 1976 | at St. Louis Cardinals | L 29–0 | Busch Memorial Stadium | 48842.0 |
| 3.0 | September 26, 1976 | at Cincinnati Bengals | L 28–7 | Riverfront Stadium | 44103.0 |
| 4.0 | October 3, 1976 | Detroit Lions | W 24-14 | Lambeau Field | 55041.0 |
| 5.0 | October 10, 1976 | Seattle Seahawks | W 27–20 | Milwaukee County Stadium | 54983.0 |
| 6.0 | October 17, 1976 | Philadelphia Eagles | W 28–13 | Lambeau Field | 55398.0 |
| 7.0 | October 24, 1976 | at Oakland Raiders | L 18–14 | Oakland-Alameda County Coliseum | 52232.0 |
| 8.0 | October 31, 1976 | at Detroit Lions | L 27–6 | Pontiac Silverdome | 74992.0 |
| 9.0 | November 7, 1976 | New Orleans Saints | W 32–27 | Milwaukee County Stadium | 52936.0 |
| 10.0 | November 14, 1976 | at Chicago Bears | L 24–13 | Soldier Field | 52907.0 |
| 11.0 | November 21, 1976 | Minnesota Vikings | L 17–10 | Milwaukee County Stadium | 53104.0 |
| 12.0 | November 28, 1976 | Chicago Bears | L 16–10 | Lambeau Field | 56267.0 |
| 13.0 | December 5, 1976 | at Minnesota Vikings | L 20–9 | Metropolitan Stadium | 43700.0 |
| 14.0 | December 12, 1976 | at Atlanta Falcons | W 24–20 | Atlanta-Fulton County Stadium | 23436.0 |
Question:
What is the lowest week number where they played against the Detroit Lions?
Answer:
4.0