Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Chagos Archipelago
Table title:
Geography
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=2 >  </th><th colspan=1 rowspan=2 > Atoll/Reef/Bank (alternate name) </th><th colspan=1 rowspan=2 > type </th><th colspan=2 rowspan=1 > Area (km2) </th><th colspan=1 rowspan=2 > number of islands </th><th colspan=1 rowspan=2 > Location </th></tr>
<tr> <th colspan=1 rowspan=1 > Land </th><th colspan=1 rowspan=1 > Total </th></tr>
<tr> <td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > unnamed bank </td><td colspan=1 rowspan=1 > submerged bank </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 04°25′S 72°36′E / 4.417°S 72.600°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > Colvocoresses Reef </td><td colspan=1 rowspan=1 > submerged atoll </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 04°54′S 72°37′E / 4.900°S 72.617°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > Speakers Bank </td><td colspan=1 rowspan=1 > unvegetated atoll </td><td colspan=1 rowspan=1 > 0.001 </td><td colspan=1 rowspan=1 > 582 </td><td colspan=1 rowspan=1 > 1) </td><td colspan=1 rowspan=1 > 04°55′S 72°20′E / 4.917°S 72.333°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > Blenheim Reef (Baixo Predassa) </td><td colspan=1 rowspan=1 > unvegetated atoll </td><td colspan=1 rowspan=1 > 0.02 </td><td colspan=1 rowspan=1 > 37 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > 05°12′S 72°28′E / 5.200°S 72.467°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > Benares Shoals </td><td colspan=1 rowspan=1 > submerged reef </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 05°15′S 71°40′E / 5.250°S 71.667°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > Peros Banhos </td><td colspan=1 rowspan=1 > atoll </td><td colspan=1 rowspan=1 > 9.6 </td><td colspan=1 rowspan=1 > 503 </td><td colspan=1 rowspan=1 > 32 </td><td colspan=1 rowspan=1 > 05°20′S 71°51′E / 5.333°S 71.850°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > Salomon Islands </td><td colspan=1 rowspan=1 > atoll </td><td colspan=1 rowspan=1 > 3.56 </td><td colspan=1 rowspan=1 > 36 </td><td colspan=1 rowspan=1 > 11 </td><td colspan=1 rowspan=1 > 05°22′S 72°13′E / 5.367°S 72.217°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > Victory Bank </td><td colspan=1 rowspan=1 > submerged atoll </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 21 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 05°32′S 72°14′E / 5.533°S 72.233°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 8a </td><td colspan=1 rowspan=1 > Nelson Island </td><td colspan=1 rowspan=4 > parts of mega-atoll Great Chagos Bank </td><td colspan=1 rowspan=1 > 0.61 </td><td colspan=1 rowspan=4 > 12642 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 05°40′53″S 72°18′39″E / 5.68139°S 72.31083°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 8b </td><td colspan=1 rowspan=1 > Three Brothers (Trois Frères) </td><td colspan=1 rowspan=1 > 0.53 </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > 06°09′S 71°31′E / 6.150°S 71.517°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 8c </td><td colspan=1 rowspan=1 > Eagle Islands </td><td colspan=1 rowspan=1 > 3.43 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 06°12′S 71°19′E / 6.200°S 71.317°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 8d </td><td colspan=1 rowspan=1 > Danger Island </td><td colspan=1 rowspan=1 > 1.06 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 06°23′00″S 71°14′20″E / 6.38333°S 71.23889°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 9 </td><td colspan=1 rowspan=1 > Egmont Islands </td><td colspan=1 rowspan=1 > atoll </td><td colspan=1 rowspan=1 > 4.52 </td><td colspan=1 rowspan=1 > 29 </td><td colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > 6°40′S 71°21′E / 6.667°S 71.350°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > Cauvin Bank </td><td colspan=1 rowspan=1 > submerged atoll </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 06°46′S 72°22′E / 6.767°S 72.367°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 11 </td><td colspan=1 rowspan=1 > Owen Bank </td><td colspan=1 rowspan=1 > submerged bank </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 06°48′S 70°14′E / 6.800°S 70.233°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > Pitt Bank </td><td colspan=1 rowspan=1 > submerged atoll </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 1317 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 07°04′S 72°31′E / 7.067°S 72.517°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 13 </td><td class="highlighted"  colspan=1 rowspan=1 > Diego Garcia </td><td colspan=1 rowspan=1 > atoll </td><td class="highlighted"  colspan=1 rowspan=1 > 32.8 </td><td colspan=1 rowspan=1 > 174 </td><td colspan=1 rowspan=1 > 42) </td><td colspan=1 rowspan=1 > 07°19′S 72°25′E / 7.317°S 72.417°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 14 </td><td colspan=1 rowspan=1 > Ganges Bank </td><td colspan=1 rowspan=3 > submerged atoll </td><td colspan=1 rowspan=3 > – </td><td colspan=1 rowspan=1 > 30 </td><td colspan=1 rowspan=3 > – </td><td colspan=1 rowspan=1 > 07°23′S 70°58′E / 7.383°S 70.967°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 15 </td><td colspan=1 rowspan=1 > Wight Bank </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > 07°25′S 71°31′E / 7.417°S 71.517°E </td></tr>
<tr> <td colspan=1 rowspan=1 > 16 </td><td colspan=1 rowspan=1 > Centurion Bank </td><td colspan=1 rowspan=1 > 25 </td><td colspan=1 rowspan=1 > 07°39′S 70°50′E / 7.650°S 70.833°E </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Chagos Archipelago </td><td colspan=1 rowspan=1 > Archipelago </td><td class="highlighted"  colspan=1 rowspan=1 > 56.13 </td><td colspan=1 rowspan=1 > 15427 </td><td colspan=1 rowspan=1 > 64 </td><td colspan=1 rowspan=1 > 04°54' to 07°39'S 70°14' to 72°37' E </td></tr>
<tr> <td colspan=9 rowspan=1 > 1) a number of drying sand cays </td></tr>
<tr> <td colspan=9 rowspan=1 > 2) main island and three islets at the northern end </td></tr>
</table>
Question:
The land area of the Chagos Archipelago is 56.13 km², what is the largest island?
Answer:
The land area of the Chagos Archipelago is 56.13 km² and the largest island is Diego Garcia.