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:
| Rank | Lane | Name | Nationality | Time |
| --- | --- | --- | --- | --- |
| 1.0 | 7.0 | Peter Vanderkaay | United States | 1:45.76 |
| 2.0 | 3.0 | Park Tae-Hwan | South Korea | 1:45.99 |
| 3.0 | 5.0 | Michael Phelps | United States | 1:46.28 |
| 4.0 | 2.0 | Paul Biedermann | Germany | 1:46.41 |
| 5.0 | 6.0 | Yoshihiro Okumura | Japan | 1:46.44 |
| 6.0 | 4.0 | Dominik Meichtry | Switzerland | 1:46.54 |
| 7.0 | 8.0 | Robbie Renwick | Great Britain | 1:47.07 |
| 8.0 | 1.0 | Nimrod Shapira Bar-Or | Israel | 1:48.16 |
Question:
What is the lowest rank that has paul biedermann as the name?
Answer:
4.0