how to fix colspan and rowspan in 2×3 table

Question

i have use code (available in my shared code)
for colspan and rowspan in 2×3 table .but it's result is not as desired.it is showing an extra cell in row two .plz check it.
<table>
<tr>
<th rowspan="2" >1</th>
<th>2</th>
<th>3</th>
</tr>
<tr>
<td colspan="2">4<td>
</tr>
</table>

Answer 1

For the last <td> tag, you did not end it with a </td> tag, you put another <td>

Answer 2

ok got it